HYDRAULIC, PNEUMATIC, ELECTRICAL, ELECTRONIC SYSTEMS - PRIMARY HYDRAULIC POWER SYSTEM
Hydraulic pump Variable displacement pump - Overhaul [15223572] Hydraulic pump Variable displacement pump - Exploded view (A.10.A) Prior operation: Hydraulic pump Variable displacement pump - Remove (A.10.A) 1.
2.
3.
Remove pressure and flow compensating valves assembly.
BSD2023A
1
BSD2051A
2
BSD2025A
3
Undo the 4 retaining bolts and remove circlip from opposite end of pump. Gently remove charge Pump from main pump assembly.
Examine valve plate (1). Check to see if it is scored, nicked, warped or damaged by cavitation. Look for score marks or damage around the bearing surface area. Check the inlet and discharge port area for signs of contamination. This contamination may show as grooves starting in the feathering notch.
MAXXUM-T3-DRAFT 02/11/2011
A.10.A / 88