Responsibilities ................. 1-12 Vehicle Preparation ................1-14 High Altitude Operation Preparation ..........1-18 Local Water Precautions ..............1-19 Wastewater Disposal Advisory ..........1-20 Hard Water Map ..............1-23 CLEANING AND CHEMICALS ..............Section 2 pH Chart .................... 2-3 Boxxer 421 Owner’s Manual...
Page 3
HIGH PRESSURE PUMP ................Section 6 Pump Maintenance ................6-1 Service ....................6-2 HydraPump II Drawing and Parts List ..........6-6 Pump Troubleshooting ............... 6-8 VACUUM SYSTEM ..................Section 7 Blower Troubleshooting/Miscellaneous Troubleshooting ..... 7-3 MD Blower Instruction Booklet Boxxer 421 Owner’s Manual HydraMaster Corporation...
Page 4
MACHINE ASSEMBLIES AND PARTS LIST ..........Section 11 Hose Assemblies ................11-78 CLEANING WAND PARTS ................. Section 12 Cleaning Wand Assembly Drawing ............ 12-1 HOW TO ORDER PARTS ................Section 13 WARRANTY INFORMATION ..............Section 14 Golden Guarantee® ACCESSORIES ..................Section 15 Boxxer 421 Owner’s Manual...
Boxxer 421 General Information his manual contains installation and operation instructions as well as information required for proper maintenance, adjustment and repair of this unit. Since the first and most important part of repair work is the correct diagnosis of the problem, component manual troubleshooting charts have been included for your convenience.
Boxxer 421 The manufacturer uses this symbol throughout the manual to warn of possible injury or death. This symbol is used to warn of possible equipment damage. This symbol is used to warn of regulatory or legal issues. Hours Telephone Numbers...
Boxxer 421 Precautions lthough this unit has been factory adjusted, it may require additional adjustments to achieve optimum performance, for instance altitude may require carburetor adjustment and ambient temperatures may require heat control adjustment. When required, consult an authorized representative.
Page 12
TRANSPORTATION OF FUEL CONTAINERS: Transportation in a vehicle of any vented fuel container that presently has or has ever contained a flammable liquid is strictly forbidden by HydraMaster Corporation and by federal and state regu- lation. THROUGH-FLOOR DRILLING: Be cautious when drilling holes through the van floor.
Page 13
HydraMaster’s ClearWater Rinse has been formulated to protect vital compo- nents. HydraMaster will not warranty parts that have been damaged from using unprotected acid products that have obviously caused failures. HARD WATER PROTECTION: Failure to take appropriate measures to prevent scale build up can result in system failure and loss of warranty on affected parts.
Boxxer 421 EXHAUST SYSTEM: Do not allow flammable material (i.e. oil, fuel, plastic or wood products) to come in contact with the exhaust system. The use of some chemicals through your mobile carpet cleaning plant can seri- ously damage the internal plumbing, high-pressure pump, chemical pump and heat exchangers.
System Operation he Boxxer heat exchanger system is a highly engineered cleaning plant designed by HydraMaster Corporation. The system utilizes a dynamic heating system com- prised of two separate exhaust heat exchangers for capturing “free heat.” The water flow is as follows: Water is fed into the machine under tap pressure and it flows through the water conditioner to the water box.
If this becomes necessary, always indicate the method of shipment you desire, i.e. UPS, Blue Label, Air Freight, Air Express, etc. HydraMaster Parts Dept. Phone ....(425) 775-7276 HydraMaster Parts Dept. Toll Free Fax..1-800-426-4225 Spare Parts List (078-340)
Page 19
Boxxer 421 Spare Parts List (078-340) PART NO DESCRIPTION 056-001 Fuse, 10 amp 056-008 Fuse, 15 amp 056-010 Fuse, 25 amp 074-007 Gauge, Hi PSI (0-1500) 074-032 Meter, Chemical Flow 078-101 Kit, Seal & Spring Hi PSI 078-140 Kit, Comet Seal...
Boxxer 421 Responsibilities In Dodge vans the fuel tanks are located directly against the floor.Caution must be used when drilling any holes through the floor. (See Product Support Bulle- tin 94062 at the end of this manual.) To purchase heavy duty 42 - 60 amp hour battery and have the battery ‘slow’ charge if new.
Page 21
Boxxer 421 CORRECT INSTALLATION INCLUDES: • Vehicle of proper load carrying capacity (recommendation: ½ ton). • Installation of through-floor fittings for gasoline fuel lines. • Placing the unit and recovery tank in your vehicle and securing them with bolts or tie down cleats.
Boxxer 421 Vehicle Preparation hen selecting a truck, remember the preferable vehicle for a Boxxer 421 installation is a cargo van with a heavy-duty suspension package and a half ton capacity. If a fresh water tank is added, a three quarter ton or larger capacity van, with a 2,400 pound payload capacity, is required.
Page 23
Boxxer 421 PLACEMENT OF UNIT IN VEHICLE There are two recommended unit placements: SIDE DOOR: Most installations are side door. This provides rear access for accessories and hoses as well as unobstructed access to the component/working side of the machine, thus making it a bit easier to perform maintenance and/or repair without removing the unit from the truck.
Page 24
Boxxer 421 Machine Tie Down Cleats Secure the machine to the floor of the van with the four tie down cleats provided. This safety measure will ensure that the machine will not slide inside the van. See the following illustration for the correct installation.
Page 25
Transportation in a vehicle of any vented fuel container that presently holds or has ever held a flammable liquid is strictly forbidden by HydraMaster Corpora- tion and by federal and state regulation. The engine exhaust from this product contains chemicals known to the State of California to cause cancer, birth defects or other reproductive harm.
The heat control system settings will have to be adjusted to compensate for the elevation. These settings will vary according to elevation. Contact HydraMaster to obtain the recommended settings. Page 1-18: General Infromation HydraMaster Corporation...
HydraMaster has included five hard water test strips with your machine. These can be used to test the water in your immediate and surrounding areas as they can vary greatly.
Boxxer 421 Cleaning and Chemicals our mobile carpet cleaning plant has been engineered using the latest and most sophisticated technology available to produce the finest carpet cleaning results possible. Despite this, however, it remains only a tool of the carpet cleaning trade, and it can produce only as good a job as the person operating it.
Page 30
HydraMaster’s ClearWater Rinse has been formulated to protect vital components. HydraMaster will not warranty parts that have been damaged from using unprotected acid products that have obviously caused failures. CLEANING STROKE PROCEDURE...
Page 31
Boxxer 421 Page 2-3: Cleaning and Chemicals...
Boxxer 421 Operating Instructions START UP 1. Perform daily and periodic maintenance as specified in this Owner’s Manual. 2. Connect all required hoses, including a garden hose for water supply. 3. Connect the cleaning tool to the length of hose required to perform the cleaning.
Boxxer 421 Set cleaning pressure at desired level. Suggested Settings Carpet Cleaning: 300 – 400 psi; Hard Surface: 1000 psi or as indicated on the tool. Turn the chemical selector valve to the “PRIME” position to purge any air from the system.
Boxxer 421 If used, turn PUMP OUT switch to “ON” (switch light will be illuminated). Set cleaning pressure at desired level (300 –400 psi). Turn the chemical selector valve to the “PRIME” position to purge any air from the system.
Boxxer 421 Shut Down 1. Flush clear water through the chemical system for 10 seconds. Turn off the chemical flowmeter. 2. Cool the machine by lowering the adjustable thermostat to the “LOW” position and the DIVERTER CONTROL switch to the “OFF” position while spraying the cleaning wand into the vacuum hose for three to five minutes.
Thus preventing excessive filling of the recovery tank through the temperature control system. The Boxxer 421 can run in two different modes: Cleaning Mode To run the machine in Cleaning mode: a) Turn the pump and diverter switch to the “ON”...
Page 37
Boxxer 421 Adjustment After Installation: Machines that are equipped with a diverter valve may need adjustment after the machine has been installed. Prior to running the machine, perform the following steps: 1. Locate the actuator connected to the diverter valve arm which is located between the blower and engine exhaust heat exchanger.
Records of maintenance must be kept and copies may be required to be furnished to HydraMaster before the warranty is honored. It is recommended that you affix a copy of the log on the vehicle door near your unit for convenience and to serve as a maintenance reminder.
Boxxer 421 WEEKLY (cont.): • Check pump pulleys. • Check high pressure water lines for wear or chafing. • Check all nuts and bolts. Tighten as needed. • Inspect vacuum relief valve. Clean and lubricate as necessary. • Clean vacuum tank thoroughly with high pressure washer.
Page 40
Boxxer 421 AS REQUIRED: DE-SCALING Scale deposits on the interior of the heating system can cause a noticeable loss in heating performance. Deposits of this kind result from hard water deposits, exces- sive chemical use, improper chemicals, etc. The frequency with which de-scaling procedures are required will vary.
Page 41
Boxxer 421 OVERALL MACHINE MAINTENANCE Maintaining the original appearance of your unit is important for two reasons: 1. It represents a big dollar investment for your cleaning business and its appear- ance should reflect that fact. A dirty machine is not professional.
Page 42
Boxxer 421 WEEKLY • Wipe down entire unit as needed. • Apply good coat of auto wax to all painted surfaces inside and out, and to control panel. • Thoroughly clean recovery tank using high pressure hot water (unit with optional high pressure cleaning gun may be used for this).
Boxxer 421 Freeze Guard VACUUM FREEZE GUARD PROCEDURE: To freeze guard your machine: 1. Start the machine. 2. Spray all of the water out of the system until the engine stops. 3. Add a half gallon of 50/50 antifreeze and water mix to the chemical mix tank and draw the antifreeze into the flow meter.
Page 44
Boxxer 421 6. Spray the antifreeze and water mix out of the machine and into a container to reclaim the solution. Run the machine until it stops. NOTE: The reclaimed antifreeze solution may be used 3 times before being discarded.
Boxxer 421 FREEZE PROTECTION OF THE PUMP-IN SYSTEM 1. Drain the fresh water tank. 2. Remove the garden hose adapter from the pump-in pump hose and position the hose so it is pointing outside the van. 3. Turn on the pump-in pump and run for 1-2 minutes till all the water is purged from the hose.
Page 46
BOXXER 421 MAINTENANCE LOG DAILY SERVICE OIL RECOMMENDATIONS BLOWER 40 weight non-detergent ENGINE OIL - check PUMP 5 - 30 weight synthetic motor oil PUMP OIL - check ENGINE 30 weight motor oil GARDEN HOSE SCREEN - clean NOTE: Overhead valve engines can use multi-viscosity oil, but will...
Boxxer 421 High Pressure Pump -Maintenance DAILY Check the oil level and the condition of the oil. The oil level should be up to the center of the sight glass on the back of the pump. Use a 30 weight, non-detergent oil.
Do not disassemble the hydraulic end unless you are a skilled mechanic. For assistance, contact HydraMaster (425-775-7275) or the distributor in your area. Servicing the Valves (See Figure 6-1) 1.
Page 49
Boxxer 421 Figure 6-1 Servicing the Valves Removing the High Pressure Manifold 1. Using an M6 allen wrench, remove all eight of the socket head bolts. 2. Rotate the crankshaft by hand to start separation of the manifold head from the crankshaft.
Page 50
Boxxer 421 To avoid damage to either plunger or seal, keep the manifold properly aligned with the ceramic plungers when removing it. 4. Remove the seal retainer from the manifold and inspect for wear. 5. Examine the ceramic plunger for cracks or scoring (refer to Servicing the Plungers for replacement).
Page 51
1. While manifold, plungers, and seal retainers are removed, examine the crank- case seals for wear. 2. Rotate the crankshaft oil seal externally for drying, cracking or leaking. 3. Consult your HydraMaster distributor if crankcase servicing is necessary. Page 6-5: High Pressure Pump...
Page 52
Boxxer 421 Figure 6-2 HydraPump II C5043, Rev— Page 6-6: High Pressure Pump HydraMaster Corporation...
Page 53
Boxxer 421 Pump Assembly Parts List ITEM PART NO DESCRIPTION 111-042 Pump, HydraPump II, Hi PSI, 3.5 GPM 105-148 Plate, Hydra Pump II Clutch Mounting 036-008 Clutch, Electrical Pump 106-003 Plug, a” NPT Hex 106-004 Plug, 2” NPT Hex 052-086 Elbow, 2”...
Page 54
Boxxer 421 High Pressure System Troubleshooting 1.0. Will not come up to normal cleaning pressure 1.1. Pressure adjusting valve is defective or dirty. Disassemble valve. Repair or replace if necessary. 1.2. Worn seals or valves in pump. Test pump output volume directly from pump at normal running RPM.
Page 55
Boxxer 421 3.0. PSI gauge reads normal; low pressure from wand 3.1. There is a restriction in the cleaning tool. Inspect tool jet and clean or replace as necessary. Inspect any filters in the cleaning tool and clean or replace as necessary.
Boxxer 421 Vacuum System he vacuum pump in this machine is commonly referred to as a ‘positive dis- placement lobe’ type blower. The performance and life of this unit is greatly dependent on the care and proper maintenance it receives.
Page 57
The switch is not activated by foam, only by liquid. VACUUM TANK FILTER BAGS HydraMaster filter bags are designed to trap lint, sand and dirt that would normally collect at the bottom of your vacuum tank. The use of these bags, if emptied at the end of each job, will eliminate the build-up of much of the debris in the tank.
Page 58
Boxxer 421 Vacuum System Troubleshooting 1.0. Weak vacuum at wand. Gauge reads normal (10" to 12" with hoses & wand attached) 1.1. Clogged hoses or wand tube. Disconnect hoses and check carefully for an obstruction. 1.2. Excessive length of hoses connected to machine. Make sure machine is rated for the conditions under which it is being operated.
Boxxer 421 5.1. The machine has been unused for a period on time and the blower was not properly lubricated when it was shut down, causing rust to build up on internal surfaces. Spray penetrating oil into blower inlet and let sit for at least one hour. Then very carefully use pipe wrench on outer diameter of pulley on blower shaft and attempt to free up blower.
Page 61
SAFETY INSTRUCTIONS 1. Do not operate before reading the enclosed instruction manual. 2. Use adequate protection, warning and safety equipment necessary to protect against hazards involved in installation and WARNING WARNING WARNING Keep body and Hearing Do not operate clothing away from Protection without guards machine openings...
TABLE OF CONTENTS SECTION SAFETY INSTRUCTIONS AND WARNING TAGS SAFETY PRECAUTIONS INTRODUCTION OPERATING DATA INSTALLATION LUBRICATION PREVENTATIVE MAINTENANCE STARTUP CHECKLIST TROUBLESHOOTING RECOMMENDED SHUTDOWN PROCEDURE MAINTENANCE RECOMMENDED LUBRICANTS CUTAWAY VIEW AND PARTS LIST WARRANTY STATEMENT 13 & 14 NOTE SECTION IMPORTANT In order to assure you of the full benefits of our product warranty, please complete, tear out and return the warranty registration card located on the back cover of this manual, or you can register your product online at http://pneumatics.tuthill.com/product_registration...
Page 63
HydraMaster blowers are built to exacting standards and if properly installed and maintained will provide many years of reliable service. We urge you to take time to read and follow every step of these instructions when installing and maintaining your blower.
Page 64
INSTALLATION WARNING: Customers are cautioned to provide adequate protection, warning and safety equipment necessary to protect personnel against hazards involved in the installation and operation of this equipment in the system or facility. Do not use air blowers on explosive or hazardous gases. Casing pressure must not exceed 25 PSIG (1.72 bar g). Each size blower has limits on pressure differential, running speed, and discharge temperature, which must not be exceeded.
Page 65
LUBRICATION Shaft bearings at the gear end of the blower are splash lubricated by one or both gears dipping into an oil reservoir formed in the gear end plate and cover. Shaft bearings at the drive end of the blower are lubricated by a slinger assembly dipping into an oil reservoir.
Page 66
A newly installed blower should be checked frequently during the first month of operation, especially lubrication. Check oil level in both the drive end and gear end of the blower and add oil as needed. See HydraMaster owners manual for recommended oil change intervals.
Page 67
TROUBLESHOOTING Although HydraMaster blowers are well designed and manufactured, problems may occur due to normal wear and the need for readjustment. The chart below lists symptoms that may occur along with probable causes and remedies. SYMPTOM PROBABLE CAUSE REMEDIES Loss of oil.
Page 68
RECOMMENDED SHUTDOWN PROCEDURE TO MINIMIZE RISK OF FREEZING OR CORROSION When high humidity or moisture is present in an air piping system, condensation of water can occur after the blower is shut down and the blower begins to cool. This creates an environment favorable to corrosion of the iron internal surfaces, or in cold weather, the formation of ice.
Page 69
HydraMaster Maintenance and Service Specifications Sheet Assembly Clearances Metric values (mm) are shown in parentheses ( ) All other values are in inches LOBES TO END PLATES INTERLOBE LOBE TO CASING MODEL DRIVE END GEAR END TOTAL TIP-DOWEL TIP-PORT 3003 .005”...
Page 70
HydraMaster MAINTENANCE AND SERVICE SPECIFICATIONS SHEET RECOMMENDED LUBRICANTS AND CAPACITIES RECOMMENDED MINERAL BASED LUBRICANTS AMBIENT SHELL CITGO CHEVRON TEXACO EXXONMOBIL F (-18 C) to TELLUS PLUS 68 A/W 68 RANDO HD 68 DTE HEAVY MEDIUM ® F (0 C) to...
Page 71
HydraMaster CUTAWAY VIEW AND PARTS LIST ITEM DESCRIPTION QTY ITEM DESCRIPTION Housing Sight Gauge Mounting foot Bearing Retainer Drive End Plate Lip Seal Gear End Plate Lip Seal Gear Cover Screw, Hex Head Drive Rotor Washer Driven Rotor Breather Timing Gear...
Page 72
HydraMaster Blower Warranty Definition The warranty will be uncontested for a period up to two (2) years from the initial date of service on the original equipment. “Uncontested” means the blower will be warranted for all causes of failure on the first blower failure.
Boxxer 421 Electrical System he Boxxer electrical system, in keeping with the entire machine concept, has been kept to a minimum so as to keep any necessary troubleshooting as easy as possible. The entire electrical system operates on 12 volts DC which is provided by a battery.
Boxxer 421 Electrical Troubleshooting Problem/ Solution Possible Cause The engine is not charging the battery. The regulator/rectifier is bad. Check the B+ voltage from the regulator/rectifier to ground. With the engine running at normal RPM the voltage should be 12.5 to 14.5 DC volts.
Boxxer 421 Water and Chemical System his high pressure chemical system has been designed to be simple and trouble free. WATER AND CHEMICAL FLOW OPERATION The chemical pump draws the chemical from the inlet filter which is in the chemical container.
Boxxer 421 BEFORE CLEANING BEGINS (cont.): 2. When the chemical begins to flow through the flowmeter, with the flow indicator indicating maximum flow and the PRIME line pulsing, turn the Chemical Selector Valve to “ON”. 3. Place the Chemical PRIME Line back into the chemical container.
Boxxer 421 Figure 9-1 Chemical Pump Assembly C-4416 Rev. B OUTLET INLET Item Part Number Description 000-106-110 Plug, Check Valve - Chemical Pump 000-064-015 Cover, Chemical Pump 000-111-030 Body, Chemical Pump 000-105-071 Mid Plate, Chemical Pump 000-046-010 Diaphragm, Chemical Pump...
Page 84
Boxxer 421 Figure 9-2 Wiring Schematic D-5150 Rev. - (Sheet 1/3) Page 9-5 : Water and Chemical...
Page 85
Boxxer 421 Figure 9-3 Wiring Schematic D-5150 Rev. - (Sheet 2/3) Page 9-6 : Water and Chemical...
Page 86
Boxxer 421 Figure 9-4 Wiring Schematic D-5150 Rev. - (Sheet 3/3) Page 9-7 : Water and Chemical...
Page 87
Boxxer 421 Heating System Troubleshooting 1.0. Machine overheats and shuts down 1.1. One or both orifices or filter screens are restricted. Remove and inspect. Clean as necessary. Note: Make sure orifices are not interchanged. 1.2. High pressure dump solenoid is restricted. Inspect solenoid and the hose that delivers water to it.
Page 88
Boxxer 421 2.5.1. Cleaning tool jet is too large or worn out. Inspect jet. Replace if necessary. 2.5.2. Cleaning solution pressure is too high. Adjust pressure to normal. Inspect pressure gauge for accurate reading. 2.6. Heat exchangers have hard water scale build up internally. Descale system.
Page 89
Boxxer 421 2.4. Chemical metering valve is faulty or partially obstructed. Inspect valve and clean or replace as necessary. 2.5. High pressure check valve is faulty. Remove and inspect. Clean or replace as necessary. 3.0. Solution jug fills with water 3.1.
Boxxer 421 Engine Troubleshooting 1.0. Will not turn over 1.1. There is a loose or corroded battery terminal. Clean and tighten the battery terminal connections. 1.2. The battery is dead. Recharge or replace the battery. Test the charging system. Repair if necessary. WARNING: Do not attempt to jump-start this machine from a running vehicle.
Page 91
Boxxer 421 2.1. Recovery tank is full. Empty the tank. 2.2. Recovery tank float is defective. Disconnect float. If engine starts, replace the float. 2.3. The oil pressure switch is preventing the engine from starting. Check the engine oil level. If it is low, add oil to the proper level. If the engine still will not start, disconnect the oil pressure switch.
Page 92
Boxxer 421 3.5. There is a mechanical problem with the engine. Have engine inspected by a qualified engine service technician. 4.0. Starts then dies immediately 4.1. The oil pressure switch is activated. Check engine oil for proper level. If oil level is okay, disconnect switch.
Page 93
Boxxer 421 6.5. Inadequate fuel supply to the carburetor. Test the fuel volume at the carburetor by removing the fuel line from the carburetor inlet and placing the line in a metal container with a minimum of 16 oz capacity. Turn on the ignition switch to operate the fuel pump. The fuel flow volume should be 12 oz / minute.
Boxxer 421 Machine Assemblies and Parts Lists Page 11-1: Machine Assemblies and Parts List...
Page 105
Boxxer 421 Figure 11-7 Frame Assembly - Front View D-5057 Rev I HIDDEN HIDDEN HIDDEN BEHIND ITEM 5 Page 11-2: Machine Assemblies and Parts List HydraMaster Corporation...
Page 106
Boxxer 421 Figure 11-8 Frame Assembly - Rear View - Left Side D-5057 Rev I Page 11-3: Machine Assemblies and Parts List...
Page 107
Boxxer 421 Figure 11-9 Frame Assembly - Rear View - Right Side D-5057 Rev I 32 31 Page 11-4: Machine Assemblies and Parts List HydraMaster Corporation...
Page 108
Item Part Number Description 000-055-149 Frame, Weldment - Boxxer 421 000-015-752 Bracket, Muffler Mounting 000-015-745 Bracket, Coil Heat Exchanger Saddle - Boxxer 421 000-015-758 Bracket, Exhaust Support 000-169-064 Valve, 3/8" NPT Full Port Ball 000-001-098 Adapter, Exhaust Turndown - Weldment Fig.
Page 110
Boxxer 421 Figure 11-10 70 Gallon Universal Recovery Tank Assembly D-6861 Rev B HIDDEN HIDDEN HIDDEN HIDDEN Page 11-7: Machine Assemblies and Parts List...
Page 111
Boxxer 421 70 Gallon Universal Recovery Tank Assembly Parts List Item Part Number Description 000-159-128 Tank, 70 Gallon Universal Recovery - Weldment Fig. 11-11 Assembly, Cover - Single Vac. - 70 Gallon Universal Tank 000-157-090 Float, Lever Switch 000-079-091 Kit, Dura-Flow APO - Production (Fig. 11-27)
Page 112
Boxxer 421 70 Gallon Universal Recovery Tank Assembly Parts List Item Part Number Description 000-174-003 Washer, 1/4" Flat 000-174-019 Washer, 1/4" Lock 000-143-333 Screw, 1/4"-20UNC x 0.50" Lg. Hex Head 000-174-029 Washer, 3/8" Rubber Back 000-094-034 Nut, #10-24UNC Nylock 000-106-049 Plug, 1" NPT Allen Head 000-174-060 Washer, 1/4"...
Page 113
Boxxer 421 Figure 11-11 70 Gallon Universal Recovery Tank Cover Assembly D-6891 Rev - 70 Gallon Universal Recovery Tank Cover Assembly Parts List Item Part Number Description 000-041-443 Cover, Single Vac. 70 Gallon Universal Recovery Tank - Wel 000-052-222 Elbow, 2" Barb x 2" FPT...
Page 114
Boxxer 421 Figure 11-12 Dash Assembly D-5044 Rev G Page 11-11: Machine Assemblies and Parts List...
Page 116
Boxxer 421 Dash Assembly Parts List Item Part Number Description 000-174-032 Washer, 3/8" Flat 000-174-030 Washer, 5/8" I.D. x 7/8" O.D. x 0.010" Thk. 000-174-034 Washer, 0.688" I.D. x 1.50" O.D. x 0.078" Thk. 000-174-062 Washer, 1/2" I.D. x 3/4" O.D. x 0.010" Thk.
Page 117
Boxxer 421 Electrical Control Panel Assembly Parts List Item Part Number Description 000-100-113 Panel, Electrical Control - Boxxer 421 000-041-377 Cover, Electrical Panel - Boxxer 421 000-074-125 Controller, Temp. Single Analog RTD Input 000-012-010 Block, Terminal 10 Post 000-157-022 Switch, Relay...
Page 118
Blower Heat ExchangerAssembly Parts List Item Part Number Description 000-038-053 Core, Blower Heat Exchanger - Boxxer 421 000-100-116 Plate, End - Weldment - Blower Heat Exchanger 000-100-117 Panel, End - Weldment - Blower Heat Exchanger 000-068-398 Hose, 3" x 3" Lg. Blue Silicon 000-068-398 Hose, 3"...
Page 119
Boxxer 421 Figure 11-15 Water Box Assembly C-5045 Rev A Page 11-16: Machine Assemblies and Parts List HydraMaster Corporation...
Page 120
Boxxer 421 Water Box Assembly Parts List Item Part Number Description 000-159-105 Tank, Poly Water Box 000-041-237 Cover, Water Box 4" 000-052-155 Tee, 3/16" Plastic Vacuum Insert 000-157-031 Switch, Side Mount w/ Bulkhead Fitting 000-169-167 Valve, Mechanical Incoming Water - Water Box 000-143-314 Screw, #8 x 1/2"...
Page 121
Boxxer 421 Figure 11-16 Hydra Pump II Assembly C-5043 Rev A Page 11-18: Machine Assemblies and Parts List HydraMaster Corporation...
Page 122
Boxxer 421 Hydra Pump II Assembly Parts List Item Part Number Description 000-111-042 Pump, Hydra II Hi PSI 3.5 GPM 000-105-148 Plate, Hydra Pump II Clutch Mounting 000-036-008 Clutch, Electric Pump 000-106-003 Plug, 3/8" NPT Hex 000-106-004 Plug, 1/2" NPT Hex 000-052-086 Elbow, 3/8"...
Page 123
Boxxer 421 Figure 11-17 Chemical Pump Assembly C-4416 Rev B OUTLET INLET Item Part Number Description 000-106-110 Plug, Check Valve - Chemical Pump 000-064-015 Cover, Chemical Pump 000-111-030 Body, Chemical Pump 000-105-071 Mid Plate, Chemical Pump 000-046-010 Diaphragm, Chemical Pump...
Page 124
Boxxer 421 Figure 11-18 Fuel Pump Assembly B-4627 Rev - Page 11-21: Machine Assemblies and Parts List...
Page 125
Boxxer 421 Figure 11-19 Blower Assembly D-5041 Rev F INSTALL INSIDE WATER BOX 16 15 Page 11-22: Machine Assemblies and Parts List HydraMaster Corporation...
Page 131
Boxxer 421 Figure 11-22 Diverter Valve Actuator Assembly C-4880 Rev B Diverter Valve Actuator Assembly Parts List Item Part Number Description 000-169-169 Valve, Air Cylinder 000-015-630 Bracket, Air Cylinder Extension 000-094-092 Nut, 7/16"-20UNF Hex Jam 000-052-550 Elbow, 1/8" NPT x 3/16" Barb...
Page 132
Boxxer 421 Figure 11-23 Hi PSI Manifold Assembly C-5123 Rev B Page 11-29: Machine Assemblies and Parts List...
Page 133
Boxxer 421 Hi PSI Manifold Assembly Parts List Item Part Number Description 000-090-010 Manifold, Hi-PSI 000-180-006 Orifice, Set Screw 0.061" 000-180-004 Orifice, Set Screw 0.033" 000-052-423 Bushing, Modified Set Screw Orifice 000-049-016 Filter, 1/4" NPT Replacement “Y” 000-106-111 Plug, 1/2" NPT Allen 000-155-020 Spring, 0.540 O.D.
Page 134
Boxxer 421 Figure 11-24 By-Pass Valve Assembly D-5046 Rev C Page 11-31: Machine Assemblies and Parts List...
Page 135
Boxxer 421 By-Pass Valve Assembly Parts List Item Part Number Description 000-169-188 Valve, PSI Regulator 0-1500 PSI - Modified 000-106-008 Plug, 3/8" NPT Allen Head 000-052-086 Elbow, 3/8" NPT Street 000-052-128 Nipple, 3/8" NPT x 3/8" Male Propane 000-052-528 Nipple, 3/8" M JIC x 3/8" NPT 000-015-515 Bracket, By-Pass Valve Mounting 000-052-142 Elbow, 3/8"...
Page 136
Boxxer 421 Figure 11-25 Engine Assembly D-5042 Rev A HIDDEN HIDDEN Page 11-33: Machine Assemblies and Parts List...
Page 137
Item Part Number Description 000-047-012 Engine, 21 HP Briggs & Stratton 000-039-030 Coupler, Balanced w/1" Bushing & Outer Hub - Black 000-090-053 Manifold, Engine Exhaust - Boxxer 421 000-135-023 Voltage Regulator 000-077-006 Key, 0.25" x 1.5" Lg. 000-106-003 Plug, 3/8" NPT Hex 000-143-185 Screw, 8mm x 20mm Grade 8.8 Hex Head...
Page 138
Boxxer 421 Figure 11-26 Briggs and Stratton Voltage Regulator Modification B-3475 Rev - Item Part Number Description - - - Briggs & Stratton Voltage Regulator 000-178-026 Wire, 16 AWG Yellow 000-037-033 Butt Connector, #22 Pink Page 11-35: Machine Assemblies and Parts List...
Page 139
Boxxer 421 Figure 11-27 Dura-Flow APO Pump Assembly D-5654 Rev E Page 11-36: Machine Assemblies and Parts List HydraMaster Corporation...
Page 140
Boxxer 421 Dura-Flow APO Pump Assembly Parts List Item Part Number Description 000-111-169 Assembly, APO Pump - Jabsco 000-091-042 Motor, Bison 438 Series 000-015-891 Bracket, APO Clamp 000-015-890 Bracket, Tank Mounted APO Support 000-143-566 Screw, 1/4-28UNF x 0.75" Lg. Socket Head 000-143-074 Screw, 1/4"-20UNC x 0.50"...
Page 141
Boxxer 421 Figure 11-28 100 Gallon Universal Recovery Tank Assembly D-6918 Rev A HIDDEN HIDDEN HIDDEN HIDDEN HIDDEN HIDDEN 44 HIDDEN HIDDEN HIDDEN 32 HIDDEN 14 10 Page 11-38: Machine Assemblies and Parts List HydraMaster Corporation...
Page 142
Boxxer 421 100 Gallon Universal Recovery Tank Assembly Parts List Item Part Number Description 000-159-129 Tank, 100 Gallon Universal Recovery - Weldment Fig. 11-29 Assembly, Recovery Tank Cover - 100 Gallon 000-157-090 Float, Lever Switch 000-079-091 Kit, Dura-Flow APO - Production (Fig. 11-27)
Page 143
Boxxer 421 100 Gallon Universal Recovery Tank Assembly Parts List Item Part Number Description 000-174-029 Washer, 3/8" Rubber Back 000-174-036 Washer, #10 Flat Rubber Backed 000-143-002 Screw, 1/4"-20UNC x 1.00" Lg. Hex Head 000-094-009 Nut, 1/4"-20UNC Hex Nylock 000-166-002 Tray, Soap Jug - Weldment 000-052-085 Elbow, 1/4"...
Page 144
Boxxer 421 Figure 11-29 100 Gallon Universal Recovery Tank Cover Assembly D-6919 Rev - 100 Gallon Universal Recovery Tank Cover Assembly Parts List Item Part Number Description 000-041-447 Cover, 100 Gallon Universal Recovery Tank - Weldment 000-078-039 Vacuum Inlet Stopper Assembly - Recovery Tank 000-057-015 Gasket, 1-1/2"...
Page 145
Boxxer 421 Figure 11-30 70 Gallon Universal Recovery Tank For 85 RMT Assembly D-7157 Rev - HIDDEN HIDDEN HIDDEN HIDDEN Page 11-42: Machine Assemblies and Parts List HydraMaster Corporation...
Page 146
Boxxer 421 70 Gallon Universal Recovery Tank For 85 RMT Assembly Parts List Item Part Number Description 000-159-128 Tank, 70 Gallon Universal Recovery - Weldment Fig. 11-11 Assembly, Cover - Single Vac. - 70 Gallon Universal Tank 000-157-090 Float, Lever Switch 000-079-091 Kit, Dura-Flow APO - Production (Fig.
Page 147
Boxxer 421 70 Gallon Universal Recovery Tank For 85 RMT Assembly Parts List Item Part Number Description 000-174-029 Washer, 3/8" Rubber Back 000-094-034 Nut, #10-24UNC Nylock 000-106-049 Plug, 1" NPT Allen Head 000-174-060 Washer, 1/4" Flat Rubber Backed 000-143-002 Screw, 1/4"-20UNC x 1.00" Lg. Hex Head 000-094-113 Nut, 1/4"-20UNC Neoprene Wellnut...
Page 148
Boxxer 421 Figure 11-31 85 Gallon Rotomolded Tank Assembly - Front View D-5566 Rev B Page 11-45: Machine Assemblies and Parts List...
Page 149
Boxxer 421 Figure 11-32 85 Gallon Rotomolded Tank Assembly - Rear View D-5566 Rev B Page 11-46: Machine Assemblies and Parts List HydraMaster Corporation...
Page 150
000-049-020 Filter, Screen - Medium 000-068-018 Hose, 1/2" I.D Bulk 000-068-069 Hose, 3/4" I.D. Weatherhead Blue - Bulk 000-033-029 Clamp, Size 12 Hose 000-105-313 Plate, HydraMaster Name- Roto Tank 000-068-020 Hose, .625" I.D. - Green Stripe Page 11-47: Machine Assemblies and Parts List...
Page 151
Boxxer 421 85 Gallon Rotomolded Tank Assembly Parts List Item Part Number Description 000-052-075 Nipple, 3/8" NPT x 1/2" NPT 000-052-052 Quick Connect, 660 Male w/ Viton Standard 000-052-326 Nipple, 3/4" NPT Close 000-055-169 Frame, Rotomolded Fresh Water Tank - Boxxer 000-052-726 Elbow, 3/4"...
Page 153
Boxxer 421 Figure 11-34 85 RMT w/ Boxxer 421 Assembly - Rear View D-7158 Rev - Page 11-50: Machine Assemblies and Parts List HydraMaster Corporation...
Page 154
Boxxer 421 85 RTM w/ Boxxer 421 Assembly Parts List Item Part Number Description Assembly, Rotomolded Tank - Boxxer Fig. 11-31 & 11-32 Assembly, Machine - Boxxer 421 Fig. 11-1 - 11-6 Assembly, Recovery Tank For 85 RMT - 70 URT Fig.
Page 155
Boxxer 421 Figure 11-35 Chemical Jug Tray Assembly C-4945 Rev C Page 11-52: Machine Assemblies and Parts List HydraMaster Corporation...
Page 156
Boxxer 421 Chemical Jug Tray Assembly Parts List Item Part Number Description 000-166-021 Tray, Chemical Jug - Outer - Weldment 000-166-025 Tray, Chemical Jug - Inner 000-078-039 Vacuum Inlet Stopper 000-143-001 Screw, 1/4"-20UNC x 0.75" Lg. Hex Head 000-174-019 Washer, 1/4" Lock 000-169-022 Valve, 1-1/2"...
If, for any reason, your distributor is unable to supply you with the necessary parts, they may call us and arrange for expedited shipping. HydraMaster sells parts only through authorized distributors and service centers. Page 13-1: How to Order Parts...
Page 162
We shall always endeavor to be fair in our evaluation of your warranty claim, and shall provide you with a complete analysis of our findings. HydraMaster warranty covers only defective materials and/or workmanship for the periods listed. Labor and/or diagnostic reimbursement is specifically excluded.
Boxxer 421 Warranty Information o avoid misunderstandings which might occur between machine owners and manufacturer, we are listing causes of component failure that specifically voids warranty coverage. Such causes as listed below shall constitute abuse or neglect. BLOWER: • Failure to lubricate impellers daily with an oil based lubricant.
Page 164
Boxxer 421 CHEMICAL SYSTEM: • Use of improper chemical. • Failure to use water softener in hard water area. • Operating machine without proper chemical filter screen. • Failure to protect against freezing. CONTROL PANEL: • Failure to protect flowmeter and water pressure gauge against freezing.
Page 165
Warranty coverage is available to you through your local Distributor. If you have moved to a new area or have purchased a used machine and need infor- mation regarding your local distributor, call HydraMaster at (425) 775-7272 or email us at custsvc@hydramaster.com.
These products can enhance your cleaning and reduce your labor costs! HydraMaster Machine accessories are the most innovative collection available in the cleaning industry. Our patented RX-20 Rotary Extractors have changed the shape of steam cleaning.
Page 168
Retail pricing included for: Truckmount machines • Accessories • Hose reels • Chemicals • Please contact your local distributor for more product and pricing information. For a distributor near you, please visit www.hydramaster.com or call 1.800.426.1301. February 15, 2007...
Page 169
Maxx™ 450 - #700-070-045.....................$20,595.00 Maxx™ 450 Diesel - #700-070-044..................21,695.00 Maxx™ 470 - #700-070-047....................21,695.00 CDS™ Overdrive Van-Powered Systems (Standard colors are HydraMaster Blue and Antique Vein.) CDS™ 4.6 Chevy......................$16,495.00 CDS™ 4.6 Chevy with Salsa Heat Booster (#079-077)............17,790.00 CDS™ 4.6 Ford........................17,495.00 CDS™ 4.6 Ford with Salsa Heat Booster (#079-077)............18,790.00 •...
Page 173
Part Number Retail Price Decals 000-081-057 “HydraMaster Equipped” 3-Color, 3” x 20” Decal ............... $9.95 000-081-058 “Safeclean” Green on White Decal ..................8.95 Vacuum Tank Filter Bags 000-049-028 Long and Narrow, 7” x 34” ....................$7.95 000-049-030 Short and Narrow, 7” x 20” ....................7.95 000-049-029 Short and Wide, 14”...
Page 174
E1244-200L 200' 23" 46" 44" $1,469.41 These reels will not fit on a fresh water tank. HydraMaster Corporation 11015 47th Avenue West Mukilteo, WA 98275 Phone: (800) 426-1301 Fax: (425) 771-7156 www.hydramaster.com PRI-012003 Doc Control 06/07/2007 Hose Reel Retail Pricing.PMD...
Page 175
Triple Storage Reels for Vacuum, Solution and Garden Hoses - Electric or Manual Part No. Model No. Capacity Width Height Depth Retail Price 000-163-540 R1836-518S 200' 25" 38" 52" $1,041.67 000-163-541 E1836-518S 200' 29" 38" 52" 1,930.50 000-163-542 R2336-518S 300' 30"...
Page 176
12 x 1.5 lb $7.90 Enzyme Carpet Pre-Spray 950-120-B 4 x 6.5 lb 27.60 950-120-C 40 lb 151.00 950-120-D 300 lb 1,055.00 HydraMaster Corporation 11015 47th Avenue West Mukilteo, WA 98275 Phone: (800) 426-1301 Fax: (425) 771-7156 www.hydramaster.com PRI-990313 Doc Control 2/16/07...
Page 177
Detergents, Rinse Agents, Bonnet Cleaners, and Presprays (cont.) Retail Unit Product Part Number Package Price Blitz 950-145-A 12 x 1.5 lb $7.75 Heavy Duty Powdered Pre-Spray 950-145-B 4 x 6.5 lb 27.40 950-145-C 30 lb 111.00 950-145-D 300 lb 940.00 Poly Break 950-135-B 4 x 1 gal...
Page 178
Deodorizers Retail Unit Product Part Number Package Price MultiPhase 800-500-A 12 x 32 oz $7.67 Triple Action 800-500-B 4 x 1 gal 22.25 Odor Neutralizer 800-500-C 5 gal 100.00 800-500-D 30 gal. 538.00 800-500-E 55 gal 765.00 U-P-S 800-475-A 12 x 32 oz $7.75 Urine Pre-Spray 800-475-B...
Page 179
All-Purpose Textile Spotter with Fliptop Cap Terms of the HydraMaster Money-Back Guarantee: Return the unused portion of the HydraMaster cleaning product within 30 days for a full refund of the purchase price. The distributor will submit a copy of the sales receipt to HydraMaster for product replacement.
Need help?
Do you have a question about the Boxxer 421 and is the answer not in the manual?
Questions and answers