TM-9-2320-272-23-4
TRUCK, 5-TON, 6X6, M939, M939A1, AND M939A2 SERIES TRUCKS (DIESEL)
TECHNICAL MANUAL; FIELD MAINTENANCE MANUAL; VOLUME 4 OF 5
SEPTEMBER 2012
TM-9-2320-272-23-4 - Page 1113 of 1393
DISASSEMBLY - Continued
20.
Remove PTO oil seal (Figure 8, Item 2) from bearing cap (Figure 8, Item 1). Discard PTO oil seal.
2
1
M6102DAA
Figure 8.
PTO Disassembly.
END OF TASK
CLEANING AND INSPECTION
WARNING
Solvent cleaning compound is flammable and toxic. Do not use near an open flame and
always have a fire extinguisher nearby when solvents are used. Use only in well-ventilated
places, wear protective clothing, and dispose of cleaning rags in approved container. Failure
to comply may result in damage to equipment, injury, or death to personnel.
CAUTION
Cleaning and inspection instructions include PTO oil pump drive gear and collar assembly
removed from transfer case input shaft.
1.
Clean all transfer case PTO components with solvent cleaning compound and dry with cleaning cloth.
2.
Inspect PTO shaft (Figure 9, Item 1) for pitting, galling, and scoring. If pitted, galled, or scored, replace PTO
shaft (Figure 9, Item 1).
3.
Inspect inner (Figure 9, Item 2) and outer (Figure 9, Item 5) shaft bearings and two bearing races
(Figure
9,
Items
3
and
4) for cracking, pitting, scoring, and discoloration. If any matched bearings
(Figure
9,
Item
2
or
5) or races (Figure 9, Item 3 or 4) are pitted, cracked, scored, or discolored, discard and
replace all four (TM 9-214).
TM 9-2320-272-23-4
0725
0725-10
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