Alemite 8702-C Manual de serviço - Página 6
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SER 8702
Pump Tube (Inner Components)
23. Remove Pin (8) that secures Coupling (7) to the
hydraulic motor rod.
• Unscrew the Coupling assembly from the hydraulic
motor rod.
24. Clamp Coupling (11) in a soft-jaw vise.
25. Remove upper Pin (9) that secures Coupling (7) to Rod
(10).
• Unscrew the Rod from the Coupling.
26. Remove lower Pin (9) that secures Coupling (11) to the
Rod.
• Unscrew the Rod from the Coupling.
27. Remove Pin (30) that secures Piston (17) to Rod (29).
• Unscrew the Rod from the Piston.
28. Straighten the tabs on Locking Washer (16).
29. Unscrew Piston (17) from the Coupling.
30. Remove the Locking Washer from the Piston.
31. Remove Ball (15) from the Piston.
32. Remove Spring (14) and Washer (13) from Ball
Stop (12).
NOTE: Separate the Ball Stop from the
Coupling only if the connection is loose.
33. Unscrew the Ball Stop from the Coupling as needed.
Clean and Inspect
NOTE: Use the appropriate repair kit for
replacement parts. Make sure all the compo-
nents are included in the kit and in good con-
dition before discarding used parts.
1. Clean all metal parts in cleaning solvent. The solvent
should be environmentally safe.
2. Inspect all parts for wear and/or damage.
• Replace as necessary.
3. Inspect Piston (17) closely. Use a magnifying glass to
detect any wire draw marks.
• Replace as necessary.
4. Closely inspect the mating surfaces of all components
for any imperfections. Ensure a smooth and clean
contact is obtained when assembled.
EXAMPLE: Place Ball (15) into Piston
(17). Fill the Piston with solvent. Make sure
no leakage occurs.
Revision (1-10)
Assembly
NOTE: Prior to assembly, certain compo-
nents require lubrication in clean oil. Refer
to Table 3 for details.
Pump Tube (Inner Components)
NOTE: Refer to Figure 4 for a section view
of the pump tube assembly.
1. Place Ball (15) into Piston (17).
NOTE: If the Ball Stop was previously
locked with Loctite 242, skip procedure 2.
2. Screw and seat Ball Stop (12) [with Loctite 242] into
Coupling (11) as needed.
• Follow the thread sealant manufacturer's
recommendations.
• Tighten securely.
3. Install Washer (13) and Spring (14) onto the Ball Stop.
4. Position Locking Washer (16) into the groove on the
Piston.
5. Screw the Coupling assembly into the Piston.
• Tighten from 19 to 21 foot pounds (25.4 - 28.3 Nm).
• Continue to tighten and align the nearest flat of the
Coupling with the tabs on the Locking Washer as
necessary.
IMPORTANT: Press on the Ball to ensure it
moves a minimum of 1/8 " (3.2 mm) prior to
contact with the Ball Stop. Should the value
be less, check to ensure the Ball Stop is fully
seated in the Coupling.
6. Bend the tabs of the Locking Washer upward onto the
Coupling.
7. Screw Rod (29) into the Piston until the pin holes
align.
NOTE: Use a spot of grease on all pins to
prevent movement.
Item No.
4
21
26
33
Table 3 Lubricated Components
6
High-Pressure Hydraulic Pump
Description
O-Ring, 1-1/8 " ID x 1-1/4 " OD
Seal, 0.540 " ID x 0.914 " OD
Seal, 0.282 " ID x 0.532 " OD
O-Ring, 1-1/4 " ID x 1-1/2 " OD
Alemite LLC