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INTRODUCTION GENERAL includes periodic inspection and lubrication. The schedule uses the operating hours on the hour meter. The table for the Maintenance Schedule has two This section has the instructions that are necessary schedules; the hour schedule and the period sched- for correct periodic maintenance.
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MAINTENANCE PROCEDURES EVERY 8 HOURS OR DAILY Put the lift truck on a level surface. Completely lower WARNING the carriage and forks. Stop the engine. Open the The operating temperature for the hydraulic hood. oil is 130° to 200° F (54° to 93° C). CHECKS WITH THE ENGINE STOPPED General...
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Battery (Item 5) WARNING Disconnect the ground cable at the bat- tery before performing any work on the electrical system. Check the electrical system for broken or loose wires and terminals. Check the battery case for cracks. Keep the battery and cable terminals clean. Check them electrolyte level.
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FIGURE 6. MAINTENANCE POINTS FIGURE 5. MAINTENANCE POINTS (DIESEL ENGINE) (DIESEL ENGINE) Tires and Wheels (Item 8) WARNING Air pressure in tires can cause tire and wheel parts to explode. This can cause serious injury or death. Tires must be removed and inflated in a safety cage if the air pressure is less than 80% of the correct pressure.
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When adding air to tires, use equipment with a gauge D. Check each latch for proper operation. The latch or preset pressure regulator and a clip-on chuck. should securely lock the fork to the carriage. Make sure the hose is long enough to avoid being in the path of the wheel parts in case of an explosion.
FIGURE 9. CHECKING THE CHAINS Load Backrest Extension C. Inspect the chain anchors for cracks or worn holes. Replace chain anchor pins that are damaged or worn. A. Check the welds for cracks Replace broken or missing cotter pins. B. Make sure that all nuts and bolts are tight. D.
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FIGURE 10. GAUGES AND WARNING LIGHTS WARNING Loss of fluid from the master cylinder Gauges and Lights indicates leakage. Repair before using. (See Figure 10) Keep the brake fluid clean. Replace all fluid in the system if there is dirt, water Start the engine.
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CAUTION If any of the instruments do not operate Do NOT operate the lift truck until the prob- as described in the following chart, re- lems are corrected. port the problems immediately. TABLE 1. INSTRUMENT PANEL (See Figure 10)
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Hydraulic System (Item 1) NOTE Some parts of the upright move at differ- Check the hydraulic oil level with the carriage low- ent speeds during raising and lowering. ered and the engine OFF. Make sure the oil is at op- All components should move smoothly erating temperature.
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EVERY 350 HOURS OR TWO MONTHS instructions. NOTE WARNING Do the 8 hour procedure plus the follow- Do not permit water, oil, or dirt to enter ing: the brake fluid. Replace all the fluid in the brake system if there is oil, water or ENGINE OIL AND FILTER dirt in the fluid.
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UPRIGHTS WARNING Do not work under a raised carriage. Lower the carriage or use a safety chain to prevent the carriage from lowering when servicing the uprights and lifting chains. A. Lubricate the sliding surfaces as shown in Figure 13. Apply lubricant only to the indicated surfaces. Do not lubricate the rolling surfaces of the load roll- ers.
OTHER LUBRICATION POINTS Lubricate the hood hinges, pins, linkages, cables, ped- als, and levers as necessary. Use SAE 30 oil and multi- purpose grease as needed. EVERY 1000 HOURS OR SIX MONTHS FINAL FUEL FILTER (DIESEL) (Item 4) Change the fuel filter as needed. The frequency of changing the fuel filter is a result of fuel quality.
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F. Loosen the nuts for the lines at two injectors. G. Start the engine. Tighten the nuts to 20 N.m (15 foot pounds) when fuel, without air bubbles, comes from the threads. IGNITION SYSTEM (GAS ENGINE) Replace the spark plugs and check the ignition tim- ing.
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EVERY 2000 HOURS OR YEARLY PCV VALVE (GAS ENGINE) (Item 24) Change the PCV valve. Make sure air will flow through the system. The PCV system will need ser- vice more frequently during the following conditions: l. Operation of the lift truck in dusty conditions 2.
ADJUSTING THE OIL CLUTCH DIFFERENTIAL (Item 21 or 22) PEDAL Check the oil level for the oil clutch transmission and The clutch pedal must be adjusted so that the pedal differential. Remove the plug for the oil level hole. arm does not touch the bottom of the floor plate. See The oil level must be even with the bottom of the hole.
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Changing The Hydraulic Oil A. Put the lift truck on a level surface. Lower the lift cylinder. Put a drain pan under the lift truck. An addi- tional drain pan is used to replace the first pan when the first is full. A container with a 49.2 litre ( 13 gal- lon) capacity is needed as a reservoir for the used oil.
WHEELS AND TIRES DRIVE TIRES Two types of rims used on the Hyster lift trucks are shown in Figure 22. The procedures for disassembly and assembly of the tires on the rims are similar. FIGURE 22. RIM ASSEMBLY...
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