TM 9-4110-255-14
5-7. FAN DRIVE SHAFT REPLACEMENT .
This task covers:
a. Removal
b. Installation
INITIAL SETUP
Equipment Conditions:
Refrigeration unit shut down (para 2-7) and battery
disconnected (para 4-35).
Evaporator fan removed (para 4-41).
Fan clutch removed (para 4-46).
Condenser coil removed (para 5-23).
a.
Removal. Loosen two set screws (1) on each flange bearing (2) and remove fan drive shaft (3).
b.
Installation. Install fan drive shaft (3) and tighten two set screw (1) on each flange bearing (2).
Figure 5-6. Fan Drive Shaft
NOTE
FOLLOW-ON MAINTENANCE:
Install evaporator fan (para 4-41).
Install fan clutch (para 4-46).
Install condenser fan (para 4-40).
Install condenser coil (para 5-23).
Connect battery (para 4-35) and put unit back into service.
5-8. REFRIGERATION SYSTEM REPAIRS .
The refrigeration system must be totally discharged (para 5-10) before any maintenance is performed on system
components. Leak testing (para 5-13) and dehydrator replacement (para 5-17) are required after any system component
has been removed and replaced. The system must be properly evacuated (para 5-14) and charged (para 5-15) to
function correctly.
5-11
