Alamo MACHETE Product Service Manual page 73

12. Remove Camplate from rotating kit Assembly and Servo Piston follower from
Camplate. (Refer to Appendix C for dis-assembly and inspection of Rotating Kit).
13. Camplate Inspection, The Finish on the Piston Shoe Surfaces of the Camplate
should show no signs of scoring at all. Inspect Camplate Bushing surface for wear and
surface for coating transfer from Bushing.
14. To remove Servo Piston Assembly from Housing start with the four bolts and
washers retaining each cover plate.
15. In removing the Cover Plate from the Servo Piston Bolt. Remove Jam Nut, Washer and
Seal Washer. Hold the Servo Piston Plate with Hex Key and unscrew Cover Plate off
Bolt.
16. Remove Servo Piston Assembly and Seal Sub-Assemblies (Two Sets) from
Housing. Note: Dis-Assembly of Servo Assembly is not required.
17. Remove retaining Ring from the Cover of the Housing. Press the Shaft, Shaft Seal or
Spacer and Washer from Housing, Remove Retaining Ring Thrust Washer, Thrust
Bearing, Second Thrust Washer and second Retaining Ring from Shaft.
18. Housing Inspection (See Figure 28), Check the Bearing (Press Fit) in Housing. If
needles remain in cage, move freely and set at the dimension shown in Figure 28,
Removal of Bearing will not be required.
.07" (1.78mm)
FIGURE 28
19. To remove Cradle Sub-Assembly remove the two Bolts retaining Cradle inside
Housing. Move the Cradle Sub-Assembly back-an-forth to release Dowel Bushing and
removing Cradle Sub-Assemblies from Housing.
20. Remove Button Head Bolts to remove Bushing from cradle.
21. Bushing Inspection, Inspect bushing for contamination embodiment within Coating
of Bushing surface coming in contact with Camplate.
22. Remove All Plugs from Housing, This for inspection to make sure contamination is
not caught under plugs or in passages.
23. Discard Parts, This will include, The Shaft Seal and all O-Rings from all assemblies,
Replace with new ones; NEVER use old Seals to assemble Pump.
Machete (Service Manual) 04/04
© 2004 Alamo Group Inc.
PUMP - DIS-ASSEMBLY
Numbered End
Flange End of Housing
73