Piston Pump (Hydraulic Fan) - Assemble
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Required Tools | |||
---|---|---|---|
Tool | Part Number | Part Description | Qty |
A | 1P-0510 | Driver Group | 1 |
B | 1P-1858 | Pliers | 1 |
C | 8H-8581 | Feeler Gauge | 1 |
D | 8T-5096 | Indicator | 1 |
E | 1S-0256 | Pliers | 1 |
F | 1U-7978 | Screwdriver | 1 |
- Use the proper equipment to handle bearing (54). Heat bearing (54) to a maximum temperature of
121 °C (250 °F) . Install bearing (54) onto the shaft (49).Show/hide tableIllustration 2 g00670361 - Use the proper equipment to handle the bearing cup. Lower the temperature of bearing cup (53) and install the bearing cup in pump body (27).
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Illustration 3 g00670360 - Inspect the O-ring seals on plugs (52). Replace the O-ring seals, if necessary. Install two plugs (52) in pump body (27).
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Illustration 4 g00670531 Show/hide tableIllustration 5 g00670532 - Install snap ring (50). Use Tooling (A) to install seal (51) (not shown).
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Illustration 6 g00670298 - Install shaft assembly (49).
- Use the following steps to determine the proper preload on the bearings of the pump assembly.
- Use the proper equipment to handle the bearing cup. Lower the temperature of bearing cup (30) and install the bearing cup in head assembly (26).
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Illustration 8 g00670604 Typical Example - Install adjustment shim (33) and bearing (32) onto shaft (49).
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Illustration 9 g00670605 - Position head assembly (26) onto pump body (27).
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Illustration 10 g01088808 - Use Tooling (C) to measure the distance between the head and the pump housing.
- Take measurements at three equal intervals on the surface between the head and the pump housing.
- The average of the three dimensions should be between zero and
0.05 mm (.002 inch) . - If necessary, grind adjustment shim (33) in order to obtain the correct dimension between the head and the pump housing. It may be necessary to replace the shim with a new part.
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Illustration 11 g00670625 - Install four bolts (25) in the head and pump housing (27). Tighten bolts (25) to a torque of
100 ± 20 N·m (75 ± 15 lb ft) .Show/hide tableIllustration 12 g00670626 - Use Tooling (D), (E), and (F) to check end play in shaft (49). If end play exists in the shaft assembly, repeat Step 6 until the correct dimension between the head and the pump housing is reached.
- Remove bolts (25) and head assembly (26) from pump body (27). Remove bearing (32) and adjustment shim (33) from shaft (49).
- Proceed with the assembly of the fan drive pump.
Show/hide tableIllustration 7 g00669728 Show/hide tableIllustration 13 g00670223 - Use the proper equipment to handle the bearing cup. Lower the temperature of bearing cup (30) and install the bearing cup in head assembly (26).
- Install two swashplate bearings (48).
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Illustration 14 g00670207 - Install spring (47).
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Illustration 15 g00670206 - Install swashplate (46).
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Illustration 16 g00670205 Note: Note that there is a correct connection of the piston rod and the swashplate.
- Install piston rod (45).
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Illustration 17 g00670204 - Install the control piston (44).
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Illustration 18 g00669745 Show/hide tableIllustration 19 g00669744 Show/hide tableImproper assembly of parts that are spring loaded can cause bodily injury.
To prevent possible injury, follow the established assembly procedure and wear protective equipment.
Note: There is spring force against lock ring (43). When lock ring (43) is not seated properly, the spring force will be released. Installation of the internal components in barrel (38) should be performed in a press. This is done in order to retain spring (42) and lock ring (43).
- Install pins (40), guide (41) and spring (42) in barrel (38).
- Use a press and Tooling (A) to compress the spring (42) in barrel assembly (38).
- Use Tooling (B) to install retaining ring (43).
- Slowly release compression on spring (42). Make sure that the retaining ring (43) is seated properly.
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Illustration 20 g00669743 - Install retaining ball (39) on barrel assembly (38).
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Illustration 21 g00669741 - Install piston assembly (37) in barrel assembly (38).
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Illustration 22 g00669742 - Install rotary group (36) onto the shaft. Make sure that the splines are aligned properly.
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Illustration 23 g00669732 - Inspect the O-ring seal on plug (34). Replace the O-ring seal, if necessary. Install plug (34).
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Illustration 24 g00669731 - Install the adjustment shim (33).
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Illustration 25 g00669730 - Install bearing (32) on the shaft.
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Illustration 26 g00669729 - Install O-ring (31).
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Illustration 27 g00669727 - Install O-ring seal (28) and port plate (29) on head assembly (26).
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Illustration 28 g00669722 - Install head assembly (26) and four bolts (25). The torque for the bolts (25) is
100 ± 20 N·m (75 ± 15 lb ft) .Show/hide tableIllustration 29 g00670203 - Install spool (23) in compensator valve (1). Install spacer (24) onto plug (22).
- Install plug (22) in compensator valve (1). The torque for the plug (22) is
30.5 ± 1.5 N·m (23 ± 1 lb ft) .Show/hide tableIllustration 30 g00670201 - Install O-ring seal (17) to plug (16). Install plate (18), spring (19), spring (20), and guide (21) in compensator valve (1).
- Install plug (16) in compensator valve (1). The torque for the plug (16) is
100 ± 5 N·m (75 ± 3 lb ft) .Show/hide tableIllustration 31 g00670198 - Install spool (14) in compensator valve (1). Install spacer (15) on plug (13).
- Install plug (13) in compensator valve (1). The torque for the plug (13) is
30.5 ± 1.5 N·m (23 ± 1 lb ft) .Show/hide tableIllustration 32 g00670195 - Install O-ring seal (8) to plug (7). Install plate (9), spring (10), spring (11), and guide (12) in compensator valve (1).
- Install plug (7) in compensator valve (1). The torque for the plug (7) is
80 ± 5 N·m (58 ± 3 lb ft) .Show/hide tableIllustration 33 g00670190 - Inspect the O-ring seals on plugs (5). Replace the O-ring seals, if necessary. Install two plugs (5) in compensator valve (1).
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Illustration 34 g00670188 - Inspect the O-ring seals (4) and replace the O-ring seals, if necessary. Install three O-ring seals (4) on compensator valve (1).
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Illustration 35 g00669721 - Install four bolts (2) and pressure and flow compensator valve (1) to fan drive pump (3). The torque for bolts (2) is
34 ± 3 N·m (25 ± 2 lb ft) .
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Illustration 1 | g00670525 |
End By:
- Install the fan drive pump. Refer to Disassembly and Assembly, "Piston Pump (Hydraulic Fan) - Install".
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