| Required Tools | |||
| Tool | Part Number | Part Description | Qty |
| A | 1P-1861 | Snap Ring Pliers | 1 |
| B | 1P-0510 | Driver Group | 1 |
| Brass Drift ( |
1 | ||
| C | 138-7575 | Link Bracket | 2 |
| D | 9U-5132 | Dial Indicator | 1 |
| E | Guide Pin M16 ( |
2 | |
Start By:
- Remove the piston pump from the machine. Refer to Disassembly and Assembly, "Piston Pump (Steering) - Remove" for the correct procedure.
- Remove the pressure and flow compensator valve from the piston pump. Refer to Disassembly and Assembly, "Pressure and Flow Compensator Valve - Disassemble" for the correct procedure.
- Position the steering pump, as shown. Loosen six socket head bolts (32) and (33).
- Remove two socket head bolts (32). Install Tool (E) in steering pump housing (3).
- Remove four socket head bolts (33) from steering pump housing (3).
- Remove pump head (31) from steering pump housing (3). Remove Tool (E) from steering pump housing (3).
Show/hide table
Illustration 3 g00379013 Show/hide table
Illustration 4 g00379032 - Remove gasket (34) from pump head (31).
- Remove piston (35) from rod (38). Remove bias piston (37) and bias spring (36) from rod (39).
- Remove valve plate (40) from pump head (31).
Show/hide table
Illustration 5 g00379036 - Remove pin (41) from pump head (31).
Show/hide table
Illustration 6 g00379573 Note: Use a blunt screwdriver to push poppet (42). Release the screwdriver from poppet (42) and note the position of the poppet. If the poppet returns to the position against seat (43), do not remove seat (43), poppet (42), and spring (44) from pump head (31).
Show/hide table
Illustration 7 g00379593 - Remove roller bearing cup (47) from pump head (31).
- If necessary, remove rod (38), O-ring seal (45), rod (39), and O-ring seal (46) from pump head (31). Inspect rod (38) and rod (39) for wear or damage. If necessary, replace rod (38) and rod (39).
Show/hide table
Illustration 8 g00379604 Show/hide table
Illustration 9 g00379753 - Position steering pump housing (3), as shown. Remove bearing cone (48) and shim pack (50) from pump shaft (49).
Show/hide table
Illustration 10 g00379813 - Remove barrel assembly (51) from pump shaft (49).
Show/hide table
Illustration 11 g00379815 Show/hide table
Illustration 12 g00379855 Show/hide table
Do not remove the retaining ring until the spring force has been released. Failure to do so could result in personal injury or death. In order to prevent this, use a suitable press to hold the spring force while the retaining ring is removed. Slowly release the spring tension with the press after the retaining ring has been removed.
- Put barrel (51) in position on a suitable press, as shown. Use Tool (A) and a suitable press to maintain pressure. Remove retaining ring (52) from barrel (51). Slowly release the pressure on the press in order to remove spring (54) from the barrel.
- Remove guide (55), spring (54), and guide (53) from barrel (51).
Note: Guides (53) and (55) are different sizes. The guides should be identified for assembly purposes. The guide with the smaller diameter goes in barrel (51) first. The guide with the larger diameter fits below snap ring (52).
Show/hide table
Illustration 13 g00379874 - Position steering pump housing (3) on wood blocks, as shown. Remove three bolts (56) and cover (57) from steering pump housing (3).
Show/hide table
Illustration 14 g00379878 - Remove O-ring seal (58) from cover (57).
Show/hide table
Illustration 15 g00380092 - Remove plug (59) from steering pump housing (3).
Show/hide table
Illustration 16 g00380095 - Remove O-ring seal (60) from plug (59).
Show/hide table
Illustration 17 g00380097 - Remove pump shaft (49) from steering pump housing (3).
Show/hide table
Illustration 18 g00380098 - Tilt steering pump housing (3), as shown. Remove swashplate (62) and pistons (61) from steering pump housing (3) as a unit.
Show/hide table
Illustration 19 g00380112 - Remove four socket head bolts (63), two limiter plates (64), and two spacers (65) from swashplate (62).
Show/hide table
Illustration 20 g00380118 - Remove pistons (66) and retaining plate (67) as a unit from swashplate (62).
Show/hide table
Illustration 21 g00380119 - Remove pistons (66) from retaining plate (67).
Show/hide table
Illustration 22 g00380120 - Remove bearing cone (68) from steering pump housing (3).
Show/hide table
Illustration 23 g00380122 - Remove bearing cup (71) from steering pump housing (3). Remove two screws (69) and swashplate bearings (70) and (72) from steering pump housing (3).
Show/hide table
Illustration 24 g00380123 Show/hide table
Illustration 25 g00380125 - Use Tool (A) to remove retaining ring (74) from steering pump housing (3). Use Tool (B) to remove seal (73) from steering pump housing (3).
Show/hide table
Illustration 26 g00380127 - If necessary, remove spring pins (75), plug (76), and O-ring seal (77) from steering pump housing (3). Remove O-ring seal (77) from plug (76).
| |
| Illustration 1 | g00378648 |
| |
| Illustration 2 | g00378855 |
|
|
Personal injury can result from being struck by parts propelled by a released spring force. Make sure to wear all necessary protective equipment. Follow the recommended procedure and use all recommended tooling to release the spring force. |
Note: The springs are compressed by pump head (31). The spring tension must be released before socket head bolts (32) and (33) are removed from pump head (31). Slowly release the spring tension. Be certain that the head moves away from the case as socket head bolts (32) and (33) are loosened. Socket head bolts (32) and (33) are long enough to release the spring force before the bolts are removed.
| NOTICE |
|---|
|
Failure to follow the recommended procedure or the specified tooling that is required for the procedure could result in damage to components. To avoid component damage, follow the recommended procedure using the recommended tools. |
Note: To dislodge pump head (31) from steering pump housing (3), tap on the side of pump head (31) with a rubber hammer. Slowly remove the pump head from steering pump housing (3). Tooling (E) will act as a guide in this procedure. During the removal of pump head (31), the valve plate may stick to the rotary pump group or to the pump head. Be careful not to damage the valve plate or pump head (31) during this procedure. When pump head (31) moves away, do not allow the pump head to move against steering pump housing (3). This could cause damage to the valve plate.
