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Operator's Manual
WSTX 22
OM-735
IMPORTANT! Do not remove this manual from the lift truck.
MAR 2023 | REV 1.3

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Summary of Contents for Clark WSTX 22

  • Page 1 Operator's Manual WSTX 22 OM-735 IMPORTANT! Do not remove this manual from the lift truck. MAR 2023 | REV 1.3...
  • Page 2 N.° de identificación del camión del cliente ___________________ Peso del camión vacío ___________________________________ Capacidad nominal del camión ____________________________ Peso bruto del camión ___________________________________ Equipo especial y dispositivos ______________________________ IMPORTANTE No exponga este manual a agua caliente o vapor. Derechos de autor © 2023 CLARK Material Handling Company...
  • Page 3 Operator's Manual You must be trained and authorized to operate a lift truck. YOU can prevent accidents First: Learn safe operating rules and your company rules. Next: Read your Operator's Manual. If you do not understand it, ask your supervisor for help. Learn about the unit you operate.
  • Page 4: A Message To Clark Lift Truck Operators

    They require specific instructions and rules for safe operation and maintenance. Safe operation of lift trucks is of primary importance to CLARK. Our experience with lift truck accidents has shown that when accidents happen and people are killed or injured, the causes are: •...
  • Page 5 (or need refresher training) operating or inspecting your lift truck, ask your supervisor. CLARK lift trucks are built to take hard work, but not abuse. They are built to be dependable, but they are only as safe and efficient as the operator and the persons responsible for maintaining them.
  • Page 7: Table Of Contents

    Contents of this Manual A Message to CLARK Lift Truck Operators ....ii Introduction ..............vi How to Use this Manual ........viii Safety Signs and Safety Messages ......x Section 1. General Safety Rules .......1-1 Section 2. Operating Hazards ........2-1 Section 3.
  • Page 8: Introduction

    This manual familiarizes you with safety, operating, and maintenance information about your new lift truck. It has been specially prepared to help you use and maintain your CLARK lift truck in a safe and correct manner. Your CLARK lift truck has been designed and built to be as safe and efficient as today’s technology can make it.
  • Page 9 “Drivers Daily Checklist.” Planned Maintenance In addition to the daily operator inspection, CLARK recommends that a planned maintenance and safety inspection program (PM) be performed by a trained and authorized mechanic on a regular basis. The PM will provide an opportunity to make a thorough inspection of the safety and operating condition of your lift truck.
  • Page 10: How To Use This Manual

    Also, the Index helps you locate information about various topics. NOTICE: The descriptions and specifications included in this manual were in effect at the time of printing. CLARK Material Handling Company reserves the right to make improvements and changes in specifica- tions or design, without notice and without incurring obligation.
  • Page 11 If the truck you operate is not equipped with a manual, ask your supervisor to obtain one and have it attached to the truck. And, remember, your CLARK dealer is pleased to answer any questions about the operation and maintenance of your lift truck and will provide...
  • Page 12: Safety Signs And Safety Messages

    If warning decals are damaged, they must be replaced. Contact your CLARK dealer for replacements. NOTICE This message is used when special information, instruc-...
  • Page 13 General Safety Rules Contents Daily Inspection ............1.2 Do's and Don'ts ............1.3 No Riders ..............1.4 Pedestrians ..............1.4 Fork Safety ..............1.5 Pinch Points ............... 1.6 Travel ................1.7 Tip Over ..............1.8 Surface and Capacity ..........1.9 Parking ..............
  • Page 14: Daily Inspection

    General Safety Rules Daily Inspection Operator’s Daily Checklist Date: Check each Item Before Start of Each Shift Check one: Gas/LPG/Diesel Truck Electric Sit-down Electric Stand-up Electric Pallet Truck Serial Number: Operator: Supervisor's OK: Hour meter reading: Check each of the following items before the start of each shift. Let your supervisor and/or maintenance department know of any problem. DO NOT OPERATE A FAULTY TRUCK.
  • Page 15: Section 1. General Safety Rules

    General Safety Rules Do's and Don'ts Don't mix drugs or alcohol with your job. OM0001 Do watch for pedestrians. OM0002 Don't block safety or emergency equipment. OM0003 Do wear safety equipment when required. OM0004 Don't smoke in "NO SMOKING" areas or when refueling.
  • Page 16: No Riders

    General Safety Rules No Riders WSTX22 WARNING Always walk the truck. Never attempt to ride or allow passengers. Pedestrians WSTX22 IMPORTANT • Watch where you are going. • Look in the direction of travel. • Pedestrians may use the same roadway you do. •...
  • Page 17: Fork Safety

    General Safety Rules Fork Safety Never allow anyone to walk under raised forks. 657005 DANGER There is special equip- ment to raise people for 2372604 overhead work. DO NOT USE LIFT TRUCKS. 657006...
  • Page 18: Pinch Points

    General Safety Rules Pinch Points 2791862 WARNING Keep hands, feet and legs out of the upright. WSTX22 WARNING Don't use the upright as a ladder. CAUTION Never try to repair the upright, carriage, chain, or attach- ment yourself! Always get a trained mechanic.
  • Page 19: Travel

    General Safety Rules Travel CAUTION The WSTX22 Walkie/Stacker counterbalanced lift truck is designed for smooth level surfaces and is not recom- mended for ramps or inclines. • Never lift or lower the load when the truck is in motion. • Travel with the load near the floor/ground whenever possible.
  • Page 20: Tip Over

    General Safety Rules Tip-over Lateral Tip-over • Lateral tip-over can occur with a combination of travel speed and sharpness of turn. This combination may exceed the stability of the truck. This condition is even more likely with an unloaded truck. •...
  • Page 21: Surface And Capacity

    General Safety Rules Surface and Capacity WSTX22 WSTX004 Avoid these conditions. They can cause a truck to tip over or lose trac- tion for braking or driving. WARNING Know the weight of your truck and load. Especially when using elevators. Know the capacity of the elevator you intend to use.
  • Page 22: Parking

    General Safety Rules Parking • Park only in authorized locations. • Never park on a grade. • Always come to a complete stop. • Be sure travel control is in NEU- TRAL. • Lower forks fully to floor. • Place control handle in full turn and raise handle to "UP"...
  • Page 23 Operating Hazards Contents Loose Loads ............... 2.2 Long and Wide Loads ..........2.3 Rear Swing ..............2.3 Low Overhead Clearance .......... 2.4 Fast Turns and High Loads ........2.4 Right-Angle Stacking ..........2.5 Chain Slack ..............2.6 Pallets and Skids ............2.7 This Section shows some of the hazards that may cause you, or some- one around you, to be killed or badly hurt.
  • Page 24: Loose Loads

    Loose Loads WARNING Loose or unbalanced loads are dangerous. Observe these precautions. Never carry loose or uneven material. OM0006 Center wide loads. OM0007 Stack and band loose material. OM0008...
  • Page 25: Long And Wide Loads

    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.
  • Page 26: Low Overhead Clearance

    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 as possible. • Watch overhead clearance. • Moving into overhead structures can tip a truck over, or spill a load.
  • Page 27: Right-Angle Stacking

    Right-Angle Stacking OM0009 S L O W L Y WARNING When right-angle stacking or moving with a raised load to clear low objects, avoid sharp turns and move slowly.
  • Page 28: Chain Slack

    Chain Slack WARNING Slack chains mean rail or carriage hang-up. Raise the forks before you move, or broken chains and/or hoses can result. WARNING Keep hands, feet and legs out of the upright. WARNING 2791862 Don't use the upright as a ladder. CAUTION Never try to repair the upright, carriage, chain, or attachment yourself! Always...
  • Page 29: Pallets And Skids

    Pallets and Skids OM0011 WARNING Do not move or store materials on damaged pallets or skids. Items can fall through them causing severe injury or death! Be sure the pallet or skid you are using is in good condi- tion and does not have defective or missing components and fasteners.
  • Page 31 Common Truck Contents Truck Description............3.2 Operator Controls ............3.3 Battery Discharge Indicator .........3.4 Nameplate ..............3.5 Warning Decals .............3.6...
  • Page 32 Common Truck Truck Model Description 1. Control Handle (Steering, Braking, Lift/Lower) 2. Battery Discharge Indicator 3. Key Switch 4. Battery Disconnect 5. Drive Wheel 6. Battery 7. Upright 8. Load Backrest 9. Load Wheels 10. Forks...
  • Page 33 Common Truck Operator Controls Key/Start Switch • Connects the battery with all truck operating systems (drive, lift, and steer electrical circuits) including the horn. • Connects battery to the diagnostic display. The key switch must always be turned to the ON position to operate the truck.
  • Page 34 Common Truck Battery Discharge Indicator Battery State of Charge Scale Fully Charged Battery 50% Charged Battery Fully Discharged Battery The battery indicator shows the actual charge level of the trucks battery. The battery discharge indicator (BDI) is used to indicate the degree the battery has been drained of charge.
  • Page 35 CAUTION When attachments are added or if the truck is modified, the capacity of the truck may be affected. Contact your authorized Clark dealer for a new nameplate showing the revised capacity. IMPORTANT OSHA requires prior written approval from the manufacturer before any modifications affecting capacity or safety may be made.
  • Page 36 Common Truck Warning Decals IMPORTANT Safety and warning decals are placed in conspicuous locations on the truck to remind you of essential procedures or to prevent you from making an error that could damage the truck or possibly cause personal injury. You should know, understand, and follow these instructions.
  • Page 37 Common Truck Warning Decals No Riding Decal This safety decal is placed on the top cover to warn of the danger of injury by riding on the truck. Always walk with WSTX22 model truck. PART NO. 2777635 No Passenger Decal This safety decal is placed on the top cover to warn of the danger of injury by attempting to ride as...
  • Page 38 Common Truck Keep Away from Forks Decal This safety decal is placed on the up- right to warn of the danger of injury from forks when they are in the raised position. Do not ride on or stand under forks or attachments. The forks can fall and cause injury or death.
  • Page 39 Operator Maintenance and Care Contents Daily Safety Inspection ..........4.2 Visual Checks ............4.3 Functional Checks ............. 4.4 Concluding Inspection ..........4.5 CAUTION The Occupational Safety and Health Administration (OSHA) requires that truck users examine their trucks before each shift to be sure they are in safe working order.
  • Page 40: Daily Safety Inspection

    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.
  • Page 41: Section 4. Operator Maintenance And Care

    Operator Maintenance and Care Visual Checks First, perform a visual inspection of the truck and its major compo- nents: 1. Walk around your lift truck and take note of obvious damage that may have been caused by operation during the last shift. 2.
  • Page 42: Functional Checks

    Operator Maintenance and Care Functional Checks Check the operation of the truck as follows: NOTICE Before performing these checks, familiarize yourself with the operating procedures in Section 5. 1. Test warning devices, horn, lights, and other safety equipment and accessories. 2.
  • Page 43: Section 5. Operating Procedures

    Operator Maintenance and Care Concluding the Inspection Make a record on the "Driver's Daily Checklist' of all the operating and truck problems that you find. Review the checklist to be sure it has been completed and turn it in to the person responsible for lift truck maintenance.
  • Page 45 Operating Procedures Contents Before Operating the Truck ........5.2 Starting from a Safe Condition ......... 5.2 Travel Control ............. 5.3 Emergency Reverse Switch ........5.3 Lift and Lower Control ..........5.4 Horn ................5.4 Braking ............... 5.5 Load Handling ............5.6 Stacking ..............
  • Page 46: Before Operating The Truck

    Operating Procedures Before Operating the Truck Be sure that you have read and understand the information in this Operator's Manual before operating the lift truck. The Operator's Manual is located conveniently in the operators com- partment. WARNING • This equipment can be dangerous if not used properly. Safe operation is the responsibility of the operator.
  • Page 47: Travel Control

    Operating Procedures Forward and Reverse Travel Control Rotate the direction/speed control as shown to travel forward. Rotate the direction/speed control in the opposite direction to travel in reverse (Reverse is defined as the direction in which the forks point). Truck speed increase the further you rotate the direction/ speed control.
  • Page 48: Lift And Lower Control

    Operating Procedures Lift and Lower Control • Press the "LIFT" control to raise the load forks. LIFT • Press the "LOWER" control to lower the load forks. LOWER Tilt Control Tilt Back • Press the "TILT Forward" control to rotate the load forks back.
  • Page 49: Braking

    Operating Procedures Braking Brake On Brake Off Brake On WSTX22 Lowering the control handle to the operating position disengages the brake. Pushing the control handle to the "UP" position or pulling the control handle to the down position applies the brake and shuts off the drive motor.
  • Page 50: Load Handling

    Operating Procedures Load Handling • Lower forks completely before entering load. • Center forks with load as you approach. WSTX22 • Enter load as far as possible. • Make sure the lifting area is clear before lifting load. • Tilt load back enough to secure the load.
  • Page 51 Operating Procedures Always be in full control of your walkie/stacker lift truck... Never operate a truck or its attachments if you are not in the designated operator's position. Never operate a lift truck when your hands are wet or greasy. Always pick the smoothest travel route for your truck.
  • Page 52 Operating Procedures CAUTION Be sure that your truck is the correct fire safety type for the area in which you are working. The proper type designation for this truck is listed on the nameplate. In areas classified as hazardous, use only trucks approved for use in those areas.
  • Page 53 Operating Procedures Adjusting the Load Forks The load forks are adjustable on the car- riage fork bar. Forks should be spaced as far apart as the load being carried will allow. Both forks should always be the same distance from the center of the fork carriage.
  • Page 54 Operating Procedures WARNING Slack chains mean rail or carriage hang-up. Raise the up- right before you move. If the upright malfunctions in any way or becomes stuck in a raised position, operate the lift control to eliminate any slack chains. Have the truck fixed by a trained and authorized mechanic.
  • Page 55 Operating Procedures Watch clearances around the truck and load as you travel. Raise the forks or attachment only to pick up or stack a load. Look out for ob- structions, especially overhead. Be aware that exaggerated tail swing, when turning while traveling forward, is a characteristic of lift trucks that are steered by the rear wheels.
  • Page 56 Operating Procedures If the forks are longer than the load, move the tips partially under the load without extending beyond the load. Raise the load to clear the floor. Back out several inches, or whatever distance is necessary, then set the load down and move forward until the load is positioned against the face of the forks.
  • Page 57: Stacking

    Operating Procedures Stacking To put a load on a stack: Approach slowly and align the lift truck and load squarely with the stack. Level the load as the lift truck is nearing the stack using the Fork Level function. Move forward, slowly, until the load is almost touching the stack.
  • Page 58 Operating Procedures To move a load from a stack: Approach the stack carefully, truck lined up squarely with the load. With upright vertical, raise the forks to the correct height for freely engaging the load pallet. Adjust fork angle as necessary to fit squarely under the load.
  • Page 59: After Operating The Truck

    Operating Procedures 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 truck in designated parking area. • Never park in areas that block emergency routes or equipment, access to fire aisles, or stairways and fire equipment.
  • Page 60 5.16...
  • Page 61 Planned Maintenance and Lubrication Contents Daily Inspection Points ..........6.2 Typical Operating Conditions ........6.2 Maintenance and Lubrication Schedule ....6.3 Safe Maintenance Practices ........6.4 Safety Standards ............6.7 Battery Maintenance ..........6.8 Battery Handling ............6.9 Battery Charging ............6.10 Battery Removal ............
  • Page 62: Daily Inspection Points

    Time intervals between maintenance are largely determined by op- erating conditions. The intervals specified in the following table are for normal operation. For more severe operation, the maintenance intervals should be shortened accordingly. Contact you CLARK dealer for recommendations. Normal Operation: Basically, eight hour material handling in clean buildings with smooth clean and level floors.
  • Page 63: Maintenance And Lubrication Schedule

    Planned Maintenance and Lubrication Maintenance and Lubrication Schedule Recommended Planned Maintenance Intervals: A = 8-10 hours daily B = 50-250 hours or every month C = 450 - 500 hours or every 3 months D = 900 - 1000 hours or every 6 months E = 2000 hours or every year Check truck visually and inspect components.
  • Page 64: Safe Maintenance Practices

    They are listed here for the reference and safety of all workers during inspection / maintenance operations. When in doubt of any inspection / maintenance procedures, please contact your local CLARK dealer. 1. Powered industrial trucks can become hazardous if maintenance is neglected. Therefore, suitable maintenance facilities, trained person- nel and procedures shall be provided.
  • Page 65 Planned Maintenance and Lubrication 9. Before Starting to Drive the Truck: a) Remove drive wheel chocks if needed. b) Plug-in battery connector. c) Lower and turn control handle to operating position. d) Insert key and turn to "On" position. e) Make sure path of travel is clear. f) Check function of controls and emergency reversal switch. g) Check function of brakes.
  • Page 66 20. Care must be taken to assure that all replacement parts, including tires, are interchangeable with the original parts and of a quality at least equal to that provided in the original equipment. Parts, including tires, are to be installed per the manufacturer’s procedures. Always use genuine CLARK or CLARK - approved parts. 21. Use special care when removing heavy components from the truck, such as counterweight, upright, etc. The truck can become unstable and should be blocked. Be sure that lifting and handling equipment is of the correct capacity and in good condition.
  • Page 67: Safety Standards

    Section 1910.178 Powered Industrial Trucks. For sale by: Superin- tendent of Documents, U.S. Government Printing Office, Washington, D.C. 20402 or contact your CLARK dealer. IMPORTANT Your new CLARK lift truck has been built to meet all ap- plicable mandatory requirements of ANSI/ITSDF B56.1 Safety Standard for Powered Industrial Trucks. Each truck also includes certain safety devices-such as a horn as standard equipment.
  • Page 68: Battery Maintenance

    Planned Maintenance and Lubrication Electric Truck Battery Maintenance BATTERY SERVICE AREA SMOKING Battery charging installations must be located in areas designated for that purpose. These areas must be kept free of all nonessential com- bustible materials. Facilities must be provided for: •...
  • Page 69: Battery Handling

    Planned Maintenance and Lubrication Battery Handling 1. Change (remove) or service storage batteries only in an area des- ignated for this purpose. 2. Be sure this area has provisions to flush and neutralize spillage, to ventilate fumes from gassing batteries, and for fire protection. 3. This area should be equipped with material handling tools designed for removing and replacing batteries, including a conveyor or over- head hoist. Use lift hooks that have safety latches. 4. Always use a special lifting device such as an insulted spreader bar to attach the hoist to the battery.
  • Page 70: Battery Charging

    Planned Maintenance and Lubrication 6. Chain hoists or power battery hoists must be equipped with load chain con- tainers to accumulate the excess lifting chain. 7. Keep all tools and other metallic objects away from terminals. WARNING BATTERY SERVICE must be done by trained and autho- rized personnel. Battery acid can cause severe burns and injury. Battery Charging 1.
  • Page 71: Battery Removal

    Planned Maintenance and Lubrication 3. When charging batteries, the vent caps must be kept in place to avoid electrolyte spray. Care must be taken to assure that vent caps are open (clean) and functioning. The battery (or compartment) cover(s) must be open to dissipate heat and gas. IMPORTANT If batteries discharge rapidly during normal operation or do not charge to the correct specifications, contact a qualified battery service technician to check the battery for you.
  • Page 72: Battery Cleaning And Care

    During cleaning, the battery vent caps must be tightly in place. Refer to the battery manufacturer or supplier for their recommended battery maintenance and care procedures. BATTERY SAVER and CLEANER, CLARK Part No. 886398, may be used to clean and protect the truck battery. New Truck Batteries: Apply a light coat of BATTERY SAVER and CLEANER to entire surface of battery. Allow to set for approximately 30 seconds, then wipe thoroughly with a wiping cloth or rag. Chemical action will dissolve rust and corrosion. After cleaning, apply a second...
  • Page 73: Battery Life

    Planned Maintenance and Lubrication How to Get Maximum Battery Life 1. Follow normal battery maintenance procedures, re-charging before 80% discharged and with periodic equalizing charges. 2. Don’t add acid to a battery. Only a person trained and qualified to do battery maintenance should determine if this is necessary. 3. Lift battery only with a correctly-constructed lifting device that will not put pressure on the battery case.
  • Page 74 Planned Maintenance and Lubrication 6.14...
  • Page 75: Section 7. Towing

    Towing IMPORTANT The WSTX22 Walkie/Stacker counterbalanced lift truck has an electronic emergency brake that must be disabled prior to towing. (See service manual) Once the electronic emergency brake system is disabled the truck can be pulled by hand to a service area. WSTX22 If your truck becomes disabled contact a trained and authorized me- chanic.
  • Page 77: Section 8. Specifications

    Fluid Recommendations Hydraulic Unit MS-68 Hydraulic Fluid (Normal: AW ISO32) (Cold Storage: AW ISO32 HVI) Drive Unit 80W-90 (GL-5) Gear Oil Fluid Capacities Hydraulic Unit 1.0 qts (nominal) Drive Unit 2.0 pints (nominal) Grease CLARK Specification MS-107C, Use NLGI #2 General Purpose Specifications...
  • Page 80 Scan Link Below Safety Starts with You! OM-735 700 Enterprise Drive Lexington KY 40510 Additional copies of this manual are available from your CLARK dealer.

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