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 TM 55-1905-223-24-2
Table 2-1. Preventive Maintenance Checks and Services-CONT
D-Daily
W-Weekly
S-Semiannually
A-Annually
Item
Interval
Items To Be
No
D
W
S
A
Inspected/Serviced
Procedures
5
Operating temperatures
The temperature gauge is located in the top cover of the gearbox.
Temperature should read 175 (80 ) to 195 (90.5 ).
F
C
F
C
Oil filters (See Note 1)
Clean oil filter elements. (FIGURE 2-4)
6
CAUTION
Before removing the filter cartridge, be sure it is not the one in
operation. High oil pressure could deplete the gearbox of oil and cause
serious damage if the element in operation is loosened by mistake.
NOTE
Filter cartridges can be cleaned while the gearbox is in operation (if
necessary) by cleaning the filter not in operation, then changing the
position of the switchover lever and cleaning the other. The lever
position points to the element in operation.
(1)
Under normal circumstances, both filter cartridges will be
cleaned at one time with the engine shut down.
2-5
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