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INTERNAL COMBUSTION LIFT TRUCKS [Do not remove this manual from the truck] C 15/18/20s D,L C 15/18/20sC L C 20/25/30/35 D,L,G C 20/25/30/32C L,G Part No. 8136112 (Eng) Book No. OM 1045 (Rev 1.4) Feb. 2017...
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The procedures for a periodic planned maintenance program that covers inspections, operational checks, cleaning, lubrication, and minor adjustments are outlined in this manual. Your CLARK dealer is prepared to help you with a Planned Maintenance Program by trained service personnel who know your lift truck and can keep it operating safely and efficiently.
Daily Inspection At the beginning of each shift, inspect your truck and fill out a daily inspection sheet. Check for damage and maintenance problems. Have repairs made before you operate the truck. CAUTION DO NOT MAKE REPAIRS YOURSELF. Lift truck mechanics are trained professionals.
Section 1. General Safety Rules Do’s and Don’ts Don't mix drugs or alcohol with your job. Do watch for pedestrians. Don't block safety or emergency equipment. Do wear safety equipment when required. Don't smoke in "NO SMOKING" areas or when refueling. Don't use the similar fuel.
Seat Belts ALWAYS BUCKLE UP Seat belts can reduce injuries. Seat Belts...
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Section 1. General Safety Rules No Riders The operator is the only one who should be on a truck. Never transport personnel on the forks of a lift truck. No Riders...
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Pedestrians Watch where you are going. Look in the direction of travel. Pedestrians may use the same roadway you do. Sound your horn at all intersections or blind spots. Watch for people in your work area even if your truck has warning lights or alarms.
Section 1. General Safety Rules Operator Protection Keep under the overhead guard. Always keep your body within the confines of the truck. Operator Protection...
Fork Safety Never allow anyone to walk under raised forks. DANGER There is special equipment to raise 2372604 people for overhead work. DO NOT USE LIFT TRUCKS. Fork Safety...
Section 1. General Safety Rules Pinch Points WARNING Keep hands, feet and legs out of the upright. WARNING Don't use the upright as a ladder. CAUTION Never try to repair the upright, carriage, chain, or attachment yourself! Always trained mechanic. Pinch Points...
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Travel Travel with the load near the floor/ground with upright tilted back cradle load whenever possible. Never lift or lower the load when the truck is in motion. When handling bulky loads that restrict your vision operate your truck reverse improve visibility.
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Section 1. General Safety Rules Parking • Never park on a grade. • Always come to a complete stop before leaving truck. • Be sure travel control is in NEUTRAL. • Lower forks fully to floor and tilt forward. • Set parking brake. •...
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/RRVH /RDGV /RRVH RU XQEDODQFHG ORDGV GDQJHURXV 2EVHUYH WKHVH SUHFDXWLRQV Never carry loose or uneven material. Center wide loads. Stack and band loose material. /RRVH /RDGV...
Section 2. Operating Hazards Long and Wide Loads / Rear Swing WARNING With long or wide loads, you need more room. So slow down and watch your clearance. A long load reduces the capacity of the truck. Know and understand your truck load rating. When extra-long material makes it necessary to travel with the load elevated, do so with extreme care and be alert to load end- swing when turning.
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Low Overhead Clearance· Fast Turns and High Loads WARNING Know the height of your truck, with and without a load. Check your clearances. Keep the load low and tilted back. WARNING Watch overhead clearance: Moving into overhead structures can tip a truck over, or spill a load. WARNING Slow down before turning.
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5. Steer Axle, Wheels / Tires 6. Upright and Carriage 7. Load Backrest 8. Forks 9. Drive Axle, Wheels / Tires The truck shown above is a typical representation of a CLARK internal combustion lift truck. Your model may vary slightly. Truck Description...
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Section 3. Operator Compartment and Controls Operator Compartment 12 13 (seat) 1. Steering Handwheel 10. Instrument Pod 2. Forward / Reverse Lever 11. Turn Signal Lever 3. Brake Fluid Reservoir 12. Lift Control Lever 4. Parking Brake Pedal 13. Tilt Control Lever 5.
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Section 3. Operator Compartment and Controls Operator Controls Key/Start Switch The Key/Start Switch: • Turns the truck electrical system on and off. • Connects and tests the warning indicator lights. • Connects the starter motor circuit when engine is to be started.
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Engine Stop Run the engine at idling speed briefly before shutting it off. Turn the key switch to the "OFF" position to shut the engine down. Seat Adjustment The fore and aft adjustment lever is located on the front under the seat. To unlock, pull Back the lever to the left and adjust the seat, declining...
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Auxiliary the truck. IMPORTANT The hydraulic levers shown are typical representations of a CLARK internal combustion lift truck. Your model may vary slightly. Lift Control Function With the lift control lever, you are able to raise and lower the fork carriage on the upright. The...
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2SHUDWRU 6DIHW\ :DUQLQJ 'HFDO WARNING Read the manual Buckle up! Apply brake when leaving truck Watch Out For Other People Most lift truck INJURIES 8009529 are to other people near the lift truck. ,03257$17 Prevent 6DIHW\ DQG ZDUQLQJ GHFDOV DUH SODFHG LQ FRQVSLFXRXV Overturns! ORFDWLRQV RQ WKH WUXFN WR UHPLQG \RX RI HVVHQWLDO SURFHGXUHV RU WR SUHYHQW \RX IURP PDNLQJ DQ HUURU...
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Section 3. Operator Compartment and Controls Upright Warning Decal This safety decal is on the upright to warn of the danger of injury from movement between rails, chains, sheaves, fork carriage, and other parts of the upright assembly. Do not climb on or reach into the upright.
Section 4. Operating Procedures Starting from a Safe Condition Always start from a safe condition. Before operating a lift truck, make sure that: 1. Parking brake is applied. 2. Forks are fully lowered to the floor or ground. 3. You are familiar with how all the controls function and have read the Operator Manual.
Adjusting the Seat Adjust the seat to a comfortable position for you. Adjust the seat by moving and holding the release lever at the front under of Back declining seat. Put the seat in a adjustment position that will provide easy reach to all controls.
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Section 4. Operating Procedures Positioning Forks and Upright When driving, with or without a load, it is good practice to have the forks slightly raised and tilt the upright (forks) backward. Having the forks raised and tilting back prevents the fork tips from catching on possible obstructions and reduces the wear on the fork blades Lift Control...
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Controlling Speed With the direction control in FORWARD or REVERSE, the parking brake released, put your foot on the accelerator pedal and push down smoothly until the truck is moving at the desired speed. Braking To stop the truck, lift your foot from the accelerator pedal and put it on the brake pedal.
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CAUTION Operate your lift truck only in areas that have been approved for your lift truck type designation. Certain areas contain flammable gases, liquids, dust, fibers, or other hazardous materials. Lift truck operations in these areas must have special approval. These areas must be designated to show the type of lift truck approval required for operation in the area.
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After Operating the Truck Always leave your lift truck in a safe condition. When you leave your truck, or park it, follow these safety rules: • Park in a safe area away from normal traffic. • Never park on a grade. •...
In general, the daily inspection should include the visual and functional checks described on the following pages. As an aid in carrying out this inspection, CLARK has prepared a form called the "Driver's Daily Checklist." We recommend that you use this form to make a daily record of your inspections and truck condition.
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Section 5. Operator Maintenance and Care Fuel Safety Practices Refueling Gasoline and Diesel Trucks Use clean, properly marked fuel cans. Clean up spills. Fuel Safety Practices...
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Refueling LPG Tanks When changing liquefied petroleum gas (LPG), tanks follow these basic rules: • Change only in well ventilated areas. • Never allow open flames. • Turn the ignition switch to the OFF position. • Check for leaks. • Check condition of the O-ring. •...
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The maintenance time intervals referred to in this manual relate to truck operating hours as recorded on the hourmeter, and are based on experience CLARK has found to be convenient and suitable under typical (normal or average) operating conditions. The periods...
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Section 7. Planned Maintenance and Lubrication NOTES: * Air filter change interval may be determined by using an air restriction indicator. ** Hydraulic filter change interval may be determined by hydraulic filter restriction indicator. B C D E Check truck for obvious damage and leaks. •...
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CLARK has prepared a Gasoline, LPG, or Diesel Planned Maintenance Report Form. Copies of this form may be obtained from your authorized CLARK dealer. We recommend that you use this form as a checklist and record of your inspection and truck condition.
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Section 7. Planned Maintenance and Lubrication PM Report Form 7-13...
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How to Perform Planned Maintenance Visual Inspection First, perform a visual inspection of the lift truck and its components. Walk around the truck and take note of any obvious damage or maintenance problems. Check to be sure all capacity, safety, and warning plates are attached and legible.
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Section 7. Planned Maintenance and Lubrication wear, rust, corrosion, cracked or broken links, stretching, etc. Check that the lift and carriage chains are correctly adjusted to have equal tension. Check that the lift chain anchor fasteners and locking means are in place and tight. Inspect all lift line hydraulic connections for leaks.
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If the fork blades are obviously bent or damaged, have them inspected by a trained maintenance person before operating the truck. Inspect the fork locking pins for cracks or damage. Reinsert them and note whether they fit properly. Wheels and Tires Check the condition of the drive and steer wheels and tires.
Section 7. Planned Maintenance and Lubrication If the maximum fork height is not reached, this indicates there is an inadequate (low) oil level in the hydraulic sump tank or severe binding within the upright. Push forward on the lift control lever. Watch the upright as it lowers. When the forks reach the floor, release the lever.
Battery Inspect the battery for damage, cracks, leaking condition, etc. If the terminals are corroded, clean and protect them with CLARK Battery Saver (available from your CLARK dealer). If your battery has removable cell caps, check to be sure the cells are all filled. Refill them with distilled water.
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The recovery bottle shown is a typical illustration of overflow system. Your actual system may vary slightly. A level anywhere between the HOT and COLD marks is nor- mal. Inspect the coolant level in the overflow bottle only. WARNING Do not remove the radiator cap when the radiator is hot. STEAM from the radiator will cause severe burns.
• Drain and replace the engine crankcase oil every 500 oper- ating hours. (depending on application). Contact your near- est CLARK Dealer for further information. • Engine Oil Filter must be changed at every PM when the oil is changed.
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ENGINE OIL PERFORMANCE DESIGNATION : Refer to the “Engine Oil” in Section 8. Hydraulic Sump Tank Check the hydraulic sump tank fluid level. Correct fluid level is important for proper system operation. Low fluid level can cause pump damage. Overfilling can cause loss of fluid or lift system malfunction.
The lift chains operate under heavy loadings and function more safely and have longer life if they are regularly and correctly lubricated. CLARK chain lubricant is recommended; it is easily sprayed on and provides superior lubrication. Heavy motor oil may also be used as a lubricant and corrosion inhibitor.
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C15-35, C15C-32C CLARK products and specifications are subject to improvements and changes without notice or obligation. Model Designation - Rated Load Capacity 1360kg @600mm load center [3000lbs@24in] [1500kg@500mm] 1590kg @600mm load center [3500lbs@24in] [1800kg@500mm] C20s 1810kg @600mm load center [4000lbs@24in] [2000kg@500mm]...
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Note: This mixture provides anti-freeze protection level of -37°C (-34°F), approximately. Transmission Fluid Recommendation Use CLARK Specification MS-276A CLARK Part number 2776236. Hydraulic Fluid Recommendation Use CLARK Specification MS-68 CLARK Part number 2776239 Hydraulic Oil, with anti-wear additives, or equivalent only.
Section 8. Specifications Engine Oil Engine Oil Recommendation LPG / GAS truck : HMC - in accordance with API classification more than a class SM or in accordance with ILSAC classification more than a class GF-4 / SAE 10W-30 GM - in accordance with API classification CF-5 grade and SAE 10W-30 full synthetic FORD - in accordance with ILSAC classification more than a class GF-5 grade and SAE 5W-30 full synthetic...
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IMPORTANT Do not extend oil change intervals from those specified when using synthetic lubricants. Fill crankcase with correct amount of oil. When adding oil between oil changes, it is preferable to use the same brand as various oils may be incompatible. Refer to the Maintenance and Lubrication Section for recommended oil change intervals.
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Index Disassembling the split rim A Message to CLARK Lift Truck wheel ........7-17 Operators ........ii Do’s and Don’ts ......1-3 Adjusting the Load Forks ..4-10 Drop-Offs ........2-5 Adjusting the Seat ....4-4 After Operating the Truck ..4-16 Emergency open .....3-31 Air Cleaning ......
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How to Perform Planned Maintenance ......7-14 Neutral Start Switch ....7-17 How to Tow a Disabled Truck ... 6-2 No Riders ........1-5 How to Use Battery Jumper Normal Operation ......7-9 Cables ........6-4 How to Use this Manual ..... viii Operating Safely .......4-7 Hydraulic Control Levers ..
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Safe Maintenance Practices ..7-3 What to do in Case of a Safety Signs and Safety Tip-over ........1-14 Messages ........x Wheels and Tires ......8-4 Seat Adjustment ..... 3-28 Wheels and Tires ....7-16 Seat Belts ......... 1-4 Service Brakes and Inching Pedal ........
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Additional copies of this manual may be purchased from YOUR AUTHORIZED CLARK DEALER CLARK MATERIAL HANDLING COMPANY 700 Enterprise Drive Lexington, Kentucky 40510 [ www.clarkmhc.com ] ● Printed Date ; Jul. 2018...
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