Do you have a question about the TM12 and is the answer not in the manual?
Questions and answers
James Hutchison
March 28, 2025
Lift only goes up about a foot
1 comments:
Mr. Anderson
March 28, 2025
The Snorkel TM12 lift may only go up about a foot if the drive/lift level sensor system detects that the platform is not on a hard, level surface or if the chassis is tilted more than two degrees side-to-side or front-to-rear. In such cases, the drive and lift functions are disabled and an alarm sounds. The lift must be on a firm, flat, level surface for full elevation.
Engine powered
gasoline/diesel
battery electric (62 pages)
Summary of Contents for Snorkel TM12
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Inc. Option 2-2 deg Part Number 514233-200 August 2017 Serial Number 060000 and after Replaces Nov 2014...
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TM12 ENGLISH When contacting Snorkel for service or parts information, be sure to include the model and serial numbers from the equipment name plate. Should the name plate be missing, the serial number is also stamped on top of the chassis above the front axle pivot.
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TM12 SEVICE AND PARTS MANUAL OREWORD OW TO ANUAL This manual is divided into six sections. NTRODUCTION ECTION General description and machine specifications. PERATION AND PECIFICATIONS ECTION Information on how to operate the work platform and how to prepare it for operation.
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WARNING All personnel shall carefully read, understand and follow all safety rules and operating instructions before operating or performing maintenance on any SNORKEL aerial work platform. E L E C T R O C U T I O N TIP OVER HAZARD COLLISION HAZARD...
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Harness attachment points are provided in the platform and the manufacturer recommends the usage of a fall restraint harness, especially where required by national safety regulations. All harness attachment points on SNORKEL vehicles have been tested with a force of 3,650 lbs (16.3 KN) per person.
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5. In an event of an accident or breakdown, refer to the “Emergency lowering” on page 16. DO NOT operate the aerial work platform if it is damaged or not functioning properly. Qualified maintenance personnel must correct the problem before putting the aerial platform back into service. TM12 Page 2 -...
INTRODUCTION This manual covers all models of the TM12 aerial work platform. This manual must be stored on the machine at all times. Read, understand and follow all safety rules and operating instructions before attempting to operate the machine. GENERAL DESCRIPTION W A R N I N G DO NOT use the maintenance platform without guardrails properly assembled and in place.
NOT intended to be driven over uneven, rough or soft terrain. PLATFORM CAPACITY The maximum platform capacity for the TM12 is 227kg (500lbs). Two people may occupy the platform indoors (only one person on the extension deck) while only one may occupy the platform outdoors.
6. Check that all guardrails are in place and all fasteners are correctly tightened. 7. Inspect the machine thoroughly for cracked welds and structural damage, loose or missing hardware, hydraulic leaks, damaged control cable and loose wire connections. Page 2 - TM12...
Visually inspect the two chain tensioning bolts on the platform mast and also the second mast to ensure locknuts are not loose. Ensure the bolt thread is vissible through the inspection holes in the tension blocks. TM12 Page 2 -...
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21. Push the platform emergency stop switch down to the the off position to check that all machine functions are disabled. Twist and pull up the platform emergency switch to enable all machine functions. Page 2 - TM12...
While operating the joystick interlock switch, slowly push or pull the joystick forward or reverse to travel in the desired direction. The further you push or pull the joystick from the centre, the faster the machine will travel. TM12 Page 2 -...
1.5 degrees side to side or 2 degrees front to back, platform raise and drive functions are disabled and an alarm sounds when these controls are activated. If the drive/lift level sensor interlock shuts off the platform raise and drive functions, lower the plat- form and drive to a level surface. Page 2 - TM12...
2. While facing the rear of the platform, step down on the foot lever and pull the top rail of the extension deck forward until the pin engages the rear stop. Refer to figure 2-8. 3. Try to move the rails back and forth to make sure the platform extension deck is locked in position. TM12 Page 2 -...
2. Park the machine on a firm level surface, preferably under cover, secure against vandals, chil- dren and unauthorised operation. 3. Turn the chassis key switch to OFF and remove the key to prevent unauthorised operation. Page 2 - TM12...
Forklift is for transport only. Refer to speci cations for weight of the machine on page 24 and be certain that the forklift is of adequate capacity to lift the machine. A view of the forklift lifting procedure is shown in figure 2-10. TM12 Page 2 -...
2. Secure the machine to the transport vehicle with chains or straps of adequate load capacity attached to the chassis lifting/tie down points. C A U T I O N Over tightening of the chains or straps attached to the tie down lugs may result in damage to the machine Page 2 - TM12...
FIGURE 2-12: Supporting the elevat- removed. ed assembly 2. Remove the block. 3. Push and hold the enable toggle switch and push the chassis lift/lower toggle switch to the down position and completely lower the platform. TM12 Page 2 -...
Explosive gas mixture hazard: Keep sparks, ames and smoking material away from batteries. ALWAYS wear safety glasses when working near batteries. Battery uid is highly corrosive. Thoroughly rinse away any spilled uid with clean water. ALWAYS replace batteries with Snorkel batteries or manufacture approved replacements weighing 26.3 kg (58lbs) each.
1. Check the battery fluid level. If the battery fluid level is lower than 10 mm (0.375 in.) above the plates, add distilled water only. 2. Connect an extension cord (1.5mm [12 gauge] minimum conductor diameter; 15m (50ft.) maximum length) to the charger plug located at the left side of the chassis. TM12 Page 2 -...
Table 2-2 below is a daily preventative maintenance checklist. The checklist has been designed for the machine service and maintenance. Please photocopy and use the checklist when inspecting the machine. Page 2 - TM12...
Check entry gate closure functions correcly Table 2-2: Daily preventative maintenance checklist * NOTE: Use ISO #46 during summer and ISO #32 during winter TM12 Page 2 -...
< 70dB (A) at Control station Operating temperature range C to +50 TABLE 2-3: TM12 Specification NOTE: Specifications are subject to change without notice. Hot weather or heavy use may affect performance. Refer to the service manual for complete parts and service information. This ma- chine meets or exceeds all applicable CE and GS machinery directive requirements.
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DO NOT remove the ballast weight. Please be aware this machine gets tted with additional ballast weight to allow for a 2 degree side to side chassis inclination. Removal of this additional ballast weight could make the machine unstable ITEM TM12 Platform size 740 mm X 960 mm (29” X 38”) Maximum platform capacity...
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< 70dB (A) at Control station Operating temperature range C to +50 TABLE 2-4: TM12 Specification for 2 maximum chassis inclination option NOTE: Specifications are subject to change without notice. Hot weather or heavy use may affect performance. Refer to the service manual for complete parts and service information. This ma- chine meets or exceeds all applicable CE and GS machinery directive requirements.
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This section contains instructions for the maintenance of the Work Platform. Refer to the General Informa- tion section for information relevant to all Snorkel work platforms. Referring to the Operator Manual will aid in understanding the operation and function of the various components and systems of the work platform, and help in diagnosing and repair of the machine.
Section 3 - Service & Repair Supporting Elevating Assembly 3-1 S UPPORTING LEVATING SSEMBLY W A R N I N G Never perform service on the work platform in the elevating assembly area while platform is elevated without first blocking the elevating assembly. DO NOT stand in elevating assembly area while deploying or storing brace.
Preventative Maintenance Section 3 - Service & Repair 3-2 P REVENTATIVE AINTENANCE The complete inspection consists of periodic visual and operational checks, along with periodic minor adjustments to assure proper performance. Daily inspection will prevent abnormal wear and prolong the life of all systems.
Section 3 - Service & Repair Preventative Maintenance Check List 3-3 P REVENTATIVE AINTENANCE HECK REVENTATIVE AINTENANCE REVENTATIVE AINTENANCE EPORT Interval Date: _______________________________________ Daily=each shift or every day Owner:______________________________________ 50h/30d=every 50 hours or 30 days 250h/6m=every 250 hours or 6 months Model No: ___________________________________ 1000h/2y=every 1000 hours or 2 years Serial No: ___________________________________...
Parts Location Section 3 - Service & Repair 3-4 P ARTS OCATION Figure 3-2: Parts Location Controller Assembly Fuse Control Cable Assembly Electrical Box Assembly Hydraulic Power and motor control Reservoir module (EZlift 230) Assembly Batteries 6 Volt Power Unit (Pump/Motor Assy) Battery Charger Control Valve...
Section 3 - Service & Repair General Lubrication 3-5 G ENERAL UBRICATION Mast Lubrication : Application: Approved Lubricant : Aerosol, Brush or Mist Application. Interflon Fin Lube TF +Teflon Lubricant should be applied as a extremely thin The use of Interflon Fin Lube is coating on the corners of the mast assembley recommended as it dries to prevent dirt contamination of lubricated parts unlike...
Battery fluid is highly corrosive. Thoroughly rinse away any spilled fluid with clean water. Always replace batteries with Snorkel batteries or manufacturer approved replacements. Before disconnecting the battery negative (-) lead, make sure all switches are OFF. If ON, a spark will occur at the ground terminal which could cause an explosion if hydrogen gas or fuel vapors are present.
Section 3 - Service & Repair Hydraulics 3-7 H YDRAULICS Y D R A U L I C A N K I L T E R LUID EVEL Figure 3-5: Hydraulic Oil Tank and Filter With platform fully lowered, oil should be visible between 1.
Hydraulics Section 3 - Service & Repair Y D R A U L I C U M P The Hydraulic Pump is located in the Power Module, and is mounted on the rear of the motor. EMOVAL NOTE: If the hydraulic tank has not been drained, suitable means for plugging the hoses should be provided to prevent excessive fluid loss.
Section 3 - Service & Repair Hydraulics Figure 3-7: Emergency Down Valve MERGENCY ALVE The Emergency Down Valve is located at the front of the machine and is mounted on the base of the cylinder. Pull to activate Front Emergency Down Valve Page 3-11...
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Figure 3-8: Hydraulic Manifold, Exploded View ADAPTORS REQUIRED SNORKEL PN PORT LOCATION END 'A' END 'B' 011941-005 D1 9/16"...
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Section 3 - Service & Repair Hydraulics E T T I N G Y D R A U L I C A N I F O L D R E S S U R E S W A R N I N G The hydraulic oil may be of sufficient temperature to cause burns.
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Hydraulics Section 3 - Service & Repair OUNTERBALANCE ALVES 1. Operate the work platform for 10-15 minutes to bring the hydraulic oil up to normal operating tempera- ture. 2. Remove the gauge port cap and install the pressure gauge assembly. 3.
Section 3 - Service & Repair Cylinders 3-8 C YLINDERS E P R E S S I O N Y L I N D E R Figure 3-10: Depression Cylinder Remove & Replace EMOVAL 1. Mark and disconnect the hose assemblies from the cylinder fittings and immediately cap the openings to prevent foreign material from enter-...
Cylinders Section 3 - Service & Repair R A K E Y L I N D E R The brake cylinder is located inside the right rear chassis wall above the wheel. Figure 3-11: Brake Cylinder, Remove & Replace EMOVAL 1.
Section 3 - Service & Repair Cylinders T E E R I N G Y L I N D E R EMOVAL Figure 3-12: Steering Cylinder Remove & Replace 1. Mark and disconnect the hose assemblies from the cylinder fittings and immediately cap the openings to prevent foreign material from enter- ing.
Cylinders Section 3 - Service & Repair I F T Y L I N D E R EMOVAL Refer to Figure 3-16: “Elevating Assembly,” on page Section 3-20 for details. 1. Fully lower platform. 2. Provide a suitable container to catch the hydraulic fluid, then disconnect the hydraulic hose. Immedi- ately plug hoses to prevent foreign material from entering.
Section 3 - Service & Repair Drive Motors 3-9 D RIVE OTORS E M O V A L 1. Use a 1000Kg (one ton) capacity jack to raise the front of the machine. Position blocks under the machine to prevent the work platform from falling if the jack fails. 2.
Elevating Assembly Section 3 - Service & Repair 3-10 E LEVATING SSEMBLY Maintenance of the elevating assembly consists of four separate tasks and maintenance intervals: Chain Lubrication ..... . . 6 months Elevating Assembly Wear Inspection .
Section 3 - Service & Repair Elevating Assembly I F T H A I N U B R I C A T I O N Refer to Figure 3-16: “Elevating Assembly,” on page Section 3-20. With platform in the stowed position; remove the platform mast cover (43).
Elevating Assembly Section 3 - Service & Repair H A I N E N S I O N N S P E C T I O N & DJUSTMENT Refer to Figure 3-16: “Elevating Assembly,” on page Section 3-20. The lifting chains can be seperatly adjusted and should always be close to the same tension. This tension should be checked annually and adjusted if necessar .
Section 3 - Service & Repair Elevating Assembly E M O V A L O F L E V A T I N G S S E M B L Y Refer to Figure 3-16: “Elevating Assembly,” on page Section 3-20. 1.
Switch Adjustment Section 3 - Service & Repair 3.11T ensor ENSOR WITCH The tilt sensor is incorporated in the EZ230 Control Module, the switch is activated if machine inclination is greater than 1.5 ° side to side or 2 ° front to back and the Mast Proximity switch is open, this results in a continuous audible alarm and all movement is disabled exept for platform lowering.The only way to clear this alarm is to return the machine inclination below 1.5 °...
Section 3 - Service & Repair Controls 3-12 C ONTROLS L A T F O R M O N T R O L S The Platform Controller can be disassembled to replace defective switches. See the Parts Manual for replacement part numbers. Figure 3-19: Upper Controls Boot, Steering Rocker Rocker, Steering...
Controls Section 3 - Service & Repair H A S S I S O N T R O L S Figure 3-20: Chassis Controls The chassis control assembly is mounted on Right Side Door the inside of the chassis door, to the left of the Hydraulic tank.
Section 3 - Service & Repair Proximity Switch 3-13 P ROXIMITY SWITCH W A R N I N G Never perform work within the elevating assembly area while the platform is elevated without first blocking the elevating assembly, see Section 3-1. E M O V A L 1.
Section 4 ROUBLESHOOTING .1 I NTRODUCTION The following section on troubleshooting provides guidelines on the types of problems users may encounter in the field, helps determine the cause of problems, and suggests corrective actions. Careful inspection and accurate analysis of the symptoms listed in the Troubleshooting Guide will localize the trouble more quickly than any other method.
PECIAL OOLS Following is a list of tools which may be required to perform certain maintenance procedures on the TM12 work platforms. Flow Meter with Pressure Gauge ( P/N 067040-000) 0-69 bar (0-1000 psi ) Hydraulic Pressure Gauge with Adapter Fittings (P/N 014124-010)
Troubleshooting IAGNOSTICS SING CAL DISPLAY The EZcal Display can be switched into calibration mode to become an invaluable tool when troubleshooting on this machine. Switch the machine on, press and hold Esc for 5 seconds until “Ezlift menu” is displayed then select diagnostics, the following menu’s are available: SYSTEM –...
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Select 1= Scissor. (Enter) Enter to Save Scroll to model. (Enter) ENTER Entry Select 1 = TM12 (Enter followed by ESC) Scroll to tilt setups . (Enter) Scroll Calibrate level. (Enter) Left/Right Enter for yes. To confirm calibration has worked switch the machine of then back on again.
Troubleshooting 4.3 - Troubleshooting Guide 4.3 T ROUBLESHOOTING UIDE TROUBLE PROBABLE CAUSE POSSIBLE SOLUTION All functions 1. Blown electric motor fuse Check electric motor fuse. Replace if blown. inoperable, electric motor 2. Faulty battery Check the voltage output of the battery charger. If less than 24 VDC, does not start.
Section 5 CHEMATICS 5.1 I NTRODUCTION This section contains electrical and hydraulic power schematics and associated information for maintenance purposes. The diagrams are to be used in conjunction with the information in Section 4. They allow understanding of the makeup and functions of the systems for checking, tracing, and faultfinding during troubleshooting analysis.
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Decal Kit (USA)....... 6-32 NEVER Replace any components or part with anything other than original Snorkel replacement parts without the Manufacturers consent.
Illustrated Parts Breakdown - General Assembly General Assembly Item Part Description QTY. PAGE 6-4 to 6-6 CHASSIS PAGE 6-8 to 6-9 PAGE 6-1 Page 6-2...
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Illustrated Parts Breakdown - General Assembly Page 6-3...
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ITE M PAR T NUMBE R DE S CR IPTION ITE M PAR T NUMBE R DE S CR IPTION 512896-000 CHAS S IS W E LDME NT TM12 SEE PAGE 6-22 C YLINDE R AS S Y (BR AKE ) 065465-000...
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Illustrated Parts Breakdown - Chassis Assembly 2 of 3 Chassis Assembly 2 of 3 505001-000 ITEM PART NUMBER DESCRIPTION 101125-001 MOTOR HYDRAULIC 101125-010 SEAL KIT (MOTOR) 510815-000 WHEEL, DRIVE 107186-000 WHEEL YOKE, L.H. 107185-000 WHEEL YOKE, R.H. 065517-000 STEER LINK RH 065518-000 STEER LINK LH 065445-000 BELL CRANK WELDMT CYLINDER ASSY, BRAKE/STEER...
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Illustrated Parts Breakdown - Chassis Assembly 3 of 3 Chassis Assembly 3 of 3 ITEM PART NUMBER DESCRIPTION 512896-000 CHASSIS WELDMENT 514275-001 PUMP 501814-000 VIBRATION MOUNT 505024-000 LATCH (HINGING DOOR) 107149-010 DOOR (HINGED) 505025-000 HINGE See Pg 6-15 TANK, (HYDRAULIC RESERVOIR) 513615-000 HYDRAULIC MANIFOLD BLOCK (see page 6-12) 510816-000 IDLER WHEEL 505041-000 BUSHING, SPACER...
Illustrated Parts Breakdown - Mast Assembly Mast Assembly Item P art Descrip on QTY . 505066-000 INNE R MOUNT 513524-000 ANC HOR INNE R 107082-000 S TANDP IP E ADAP TE R 513523-000 OUTE R ANC HOR 505063-000 OUTE R MOUNT 505057-000 OUTE R AXLE 505056-000...
ORFS build. Illustrated Parts Breakdown ORFS Build - Control Valve Assembly Control Valve Assembly 513615-000 ADAPTORS REQUIRED SNORKEL PN PORT LOCATION END 'A' END 'B' 011941-005 D1 9/16" MALE UNF 9/16" MALE ORFS ST 011941-005 D2 9/16" MALE UNF 9/16" MALE ORFS ST 011941-005 R 9/16"...
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Illustrated Parts Breakdown Build - Control Valve Assembly Page 6-13...
Illustrated Parts Breakdown - Lower Controls Assembly Lower Controls Assembly Item Part Description QTY. 107148-000 LID, LCB BOX 505053-000 CABLE GLAND 107400-000 LCB BOX (WE LDME NT) 510429-003 LCB OVERLAY 512543-000 KE Y S WITCH & MOUNT KE Y 510524-000 E ME R GE NCY S TOP BUTTON &...
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Illustrated Parts Breakdown - Hydraulic Cylinder Assembly (Lift) Hydraulic Cylinder Assembly 512888-000 (Lift) TYPE A TYPE B Item Part Description QTY. Item Part Description QTY. 3077-000 LIFT CYLINDER SEAL KIT 512888-010 LIFT CYLINDER SEAL KIT 107082-000 STANDPIPE ADDAPTOR 107082-000 STANDPIPE ADDAPTOR 513286-000 EMERGENCY DOWN VALVE T-HANDLE 513286-000...
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Illustrated Parts Breakdown - Hydraulic Cylinder Assembly (Steer / Brake) Hydraulic Cylinder Assembly 510895-000 (Steer / Brake) TYPE A TYPE B Item Part Description QTY. Item Part Description QTY. 505035-010 SEAL KIT, BRAKE/STEER CYLINDER (sn < 054179) 510895-010 SEAL KIT, BRAKE/STEER CYLINDER SEAL KIT, BRAKE/STEER CYLINDER (sn 054180 +) 512795-000 510893-000...
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Illustrated Parts Breakdown - Hydraulic Cylinder Assembly (Pothole) Hydraulic Cylinder Assembly 512638-000 (Pothole) TYPE A TYPE B Item Part Descrip on QTY. Item Part Descrip on QTY. 512638-010 SEAL KIT, POTHOLE CYLINDER 512794-000 SEAL KIT, POTHOLE CYLINDER 512639-000 VALVE M1230E POTHOLE CYLINDER 512639-000 VALVE M1230E POTHOLE CYLINDER 503760-000 BUSHING...
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Illustrated Parts Breakdown - 32 Electric Kit 510520-000 Kit Qty Part Number Description Ground Control Box 510522-000 Toggle Switch SPDT (on)-off-(on) 510521-000 Toggle Switch, on-(on) 510524-000 Twist to Release Emergency Stop 510525-000 Normally Closed Contact Block 510527-000 Normally Open Contact Block Platform Control Box 510541-000 Toggle Switch SPDT on-on...
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Do you have a question about the TM12 and is the answer not in the manual?
Questions and answers
Lift only goes up about a foot
The Snorkel TM12 lift may only go up about a foot if the drive/lift level sensor system detects that the platform is not on a hard, level surface or if the chassis is tilted more than two degrees side-to-side or front-to-rear. In such cases, the drive and lift functions are disabled and an alarm sounds. The lift must be on a firm, flat, level surface for full elevation.
This answer is automatically generated