TM 9--2520--215--34
0056 00--2
INPUT SCAVENGE OIL PUMP ASSEMBLY REPAIR – CONTINUED
0056 00
DISASSEMBLY – Continued
NOTE
Do not remove dowel pins from divider plate or needle bearings from pump, cover and body
unless replacement is required. Step 5 gives procedures for removal.
5. Press or drive needle bearings (10) out. Remove dowel pins (11) from divider plate (3).
11
3
10
10
CLEANING
See WP 0018 00 for cleaning procedures.
INSPECTION
See WP 0018 00 for general inspection and repair recommendations.
PART NAME
CHECK POINTS
ACCEPTABLE LIMITS
Needle bearings
Input scavenge pump body
Internal drive gear
Idler gear
Bearings OD
Bearings ID
Bore ID in pump body and cover
Bearing surface OD of gear shaft
Bearing fit on gears
Bearing surface OD of gear shaft
Bearing fit on gears
To press fit 1.2495 to 1.2505 bore
To fit 1.000 diameter shaft
1.2495 to 1.2505 in.
Wear limit: 1.2510 in.
0.9990 to 1.0000 in.
To fit on 1.0000 diameter shaft
0.9990 to 1.0000 in.
To fit on 1.0000 diameter shaft
ASSEMBLY
1. Install needle bearings (10) in cover assembly (2).
2
10
10