TM 9-2320-260-20
Table 2-1. Unit Level Preventive Maintenance Checks and Services (Contd).
NOT FULLY
ITEM TO
PROCEDURE
MISSION
ITEM INTERVAL
CHECK/
NO.
CAPABLE IF:
SERVICE
EXPECTED TEMPERATURES
+40F TO -65F
ABOVE 15F
+40F TO -15F
(+4C TO -54C)
(ABOVE -9C)
(+4C TO -26C)
OEA
OE/HDO 10
OE/HDO 30
OE/HDO - Lubricating oil, internal
combustion engine
(MIL-L-2104)
OEA - Lubricating oil, internal
combustion engine (arctic)
(MIL-L-46167)
GO 75
GO 80/90
GO 80/90
GO - Lubricating oil, gear multi-
purpose (MIL-L-21O.5)
a. Inspect midship winch for tight mounting and
Midship
50
Semi-
broken or missing parts. Tighten loose parts. Repair or
winch
annual
replace missing or damaged parts as necessary
(M815)
b. Check drive chain (1) for proper tension and damage.
To check and adjust tension, using a straight edge as a
gage, measure 7/16-9/16 in (1.1- 1.4 cm) deflection at
upper midpoint of drive chain (1). If deflection is not
correct, record measurement and adjust drive chain (1).
1. Loosen two locknuts (3) on sleeve bearing (2).
2. Slide sleeve bearing (2) right or left in slotted holes
on support bracket (4) to tighten or loosen drive chain (1).
3. Repeat steps 1 and 2.
4. Tighten two locknuts (3) when proper deflection is
obtained.
Replace drive chain (1) if damaged (para. 13-13).
2-38
