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• Use the correct tools for the job. • Keep the tools clean and in good condition. • Always use HYSTER APPROVED parts when making repairs. Replacement parts must meet or exceed the specifications of the original equipment manufacturer. • Make sure all nuts, bolts, snap rings, and other fastening devices are removed before using force to remove parts.
1800 SRM 1038 Description and Operation General For the service brake system, there are oil-cooled brake system. This service manual also includes brakes at the drive wheels. This service manual has troubleshooting and specifications. information on how to drain, fill, remove, disassem- ble, clean, check, assemble, and install the service Description and Operation The service brake pedal (treadle valve) or the de-...
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1800 SRM 1038 Repair 7. Apply brakes ten to twenty times until accumu- 12. Place a container on inner side of the brake hous- lated hydraulic brake pressure is removed. ing. 8. Remove tire and rim assembly. 13. Disconnect the coolant input line. 9.
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Repair 1800 SRM 1038 26. Remove temperature sensor, if fitted. 27. Remove bleeder screw and inlet fittings for the hydraulic lines. See Figure 6. 1. CAPSCREW Figure 7. Brake Housing Capscrews 1. BLEEDER SCREW 2. HYDRAULIC INLET FITTING, O-RING TYPE 3.
1800 SRM 1038 Repair Spindle and Brake Cover 6. Use a lifting device to remove the spindle. See Figure 11. NOTE: On some axle assemblies, the brake cover is mounted between the spindle and axle housing 7. Remove all gasket material from the mounting flanges.
Repair 1800 SRM 1038 DISASSEMBLE NOTE: Some brake assemblies use a spacer and stan- dard stationary disc. Some use a single thick-splined stationary disc as the first disc against the housing WARNING instead of a spacer and standard stationary disc com- To prevent serious eye injury, always wear safe bination.
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1800 SRM 1038 Repair 1. HOUSING 2. SPRING, FULLY EXPANDED 3. SHOULDER 4. SPRING GUIDE Figure 17. Piston Return Spring 1. PISTON RETURN SPRING ASSEMBLY 7. Remove the plug and pin assembly, the spring, Figure 15. Piston Return Spring and the spring guide from the housing. WARNING NOTE: Two types of spring guides are used.
Repair 1800 SRM 1038 CLEAN Parts must remain in hot solution tanks until com- pletely cleaned and heated. CAUTION 1. Clean with cleaning solvent or in a hot solution The bearing cones can be damaged if the cones tank with a weak alkaline solution. are dried by rotating with compressed air.
1800 SRM 1038 Repair Disc REPLACE NOTE: If discs are reusable, maintain disc stack or- Parts der. Replace worn or damaged parts of the wet disc brake If any of the following conditions exist with a friction assembly. The following are some examples to check: or stationary disc, replace full disc stack: •...
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Repair 1800 SRM 1038 2. Install the O-ring on the plug. 3. Put the spring guide inside the brake housing below the plug hole. Verify the flat area of the guide is against the housing. 4. Install the spring on top of the guide. 5.
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1800 SRM 1038 Repair 1. PISTON A. RUBBER PART OUT Figure 21. Piston Installation 1. INNER PISTON SEAL Figure 23. Inner Piston Seals 1. PLASTIC SEAL BODY 2. ROUND SPACER 3. RUBBER ELEMENT SEAL ENERGIZERS Figure 22. Piston Seal Arrangement NOTE: An O-ring or garter spring seal spacer may be used.
Repair 1800 SRM 1038 17. Put the second seal in the space between the irritation to eyes and skin. Wash after skin housing and the piston on top of the first seal. contact. If the Permatex gets in the eyes, flush The rubber part of the seal must be away from your eyes with water for 15 minutes.
1800 SRM 1038 Repair 2. Apply Permatex 51D or its equivalent to the outer diameter of the seal casing. 3. Position the seal over the bore so that the metal part of the seal is up. CAUTION Do not apply pressure to the inner metal part of the seal.
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Repair 1800 SRM 1038 1. AXLE FLANGE 2. SILICONE BEAD Figure 29. Axle Flange Figure 31. Spindle and Brake Cover 3. Use a lifting device to install the spindle on the 6. Install the capscrews and washers. See Fig- guide studs. Make sure the spindle cannot fall ure 32.
1800 SRM 1038 Repair Brake Housing CAUTION Do not exceed a 3 mm (0.118 in.) diameter bead of silicone gasket material. Too much gasket material blocks the passages and damages the components. 1. Apply a 3.0 mm (0.118 in.) diameter continuous bead of silicone gasket material on the mounting surface of the brake housing.
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