TM 9-2320-272-24-3
4-208. TRANSFER CASE POWER TAKEOFF (PTO) MAINTENANCE (Contd)
b. Cleaning and Inspection
WARNING
Drycleaning solvent is flammable and toxic. Do not use near
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 do this may result in injury or death to
personnel and/or damage to equipment.
NOTE
Cleaning and inspection instructions include PTO oil pump drive
gear and collar assembly removed from transfer case input shaft
in para. 4-207.
Clean all transfer case PTO components with drycleaning solvent and dry with lint-free cloth.
1.
2.
Inspect PTO shaft (3) for pitting, galling, and scoring, If pitted, galled, or scored, replace PTO
shaft (3).
Inspect PTO housing (13) for cracks, or pitting in bores and on machined surfaces. If PTO housing (13)
3.
is cracked or pitted in bores or on machined surfaces, replace transfer case PTO.
4.
Inspect inner (4) and outer (2) shaft bearings and two bearing races (1) and (5) for cracking, pitting,
scoring, and discoloration. If any matched bearing (4) or (2) or races (1) or (5) are pitted, cracked,
scored, or discolored, discard and replace all four (TM 9-214).
5.
Inspect PTO oil pump drive gear (8) and collar (7) for cracks, pitting, scoring, or missing teeth. If
cracked, pitted, scored, or teeth are missing, replace PTO oil pump drive gear (8) and collar (7).
6.
Inspect oil pump adapter (12) for cracks. If cracked, replace pump adapter (12).
7.
Inspect oil pump (9) and shaft (10) for cracks and scoring. If cracked or scored, replace oil pump (9)
and shaft (10).
8.
Inspect bearing cap (6) for cracks. If cracked, replace bearing cap (6).
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