TM 9-4310-394-13
2-12. OPERATION UNDER UNUSUAL WEATHER. Continued.
a. Operation in Extreme Cold. Continued.
(4)
(Refer to Figure 2-8.) Cold weather starting can be improved by the addition of engine oil in rocker arm
cover. Remove rubber plug (1) of rocker arm cover and add five or six drops of engine oil before starting.
(5)
Replace rubber plug (1) immediately after oil is added.
(6)
Turn key (2) in key switch to preheat position and hold key there for 30 seconds.
(7)
Release key (2) and allow it to return to OFF position.
(8)
Start the engine immediately as described in paragraph 2-9.
b. Operation in Extreme Heat.
(1)
Protect air compressor unit from direct heat of the sun.
(2)
Make sure oil is maintained on the top oil level mark.
(3)
If overheating occurs in extreme conditions, shut down engine immediately. If possible protect air
compressor unit from direct heat or the sun.
(4)
Check the engine air cleaner element frequently. If it appears dirty, contact unit support for a replacement
air cleaner element.
c. Operation in Sandy or Dusty Areas. Dusty and sandy conditions can seriously affect the operation of the air
compressor unit. When operating the air compressor unit in these dusty and sandy conditions, perform the following
steps.
(1)
Accumulation of dust or sand in the filters of the diesel engine will cause the air compressor to overheat
and damage the equipment. Replace engine air filter and all other areas of dust and sand accumulation frequently. In
extreme conditions, daily cleaning of filter may be necessary.
(2)
Accumulation of dust or sand in the air intake filter of the air compressor unit can also cause the air
compressor to overheat and to fail to compress air efficiently.
(3)
Check engine oil and the air compressor oil more often to make sure oil level of each component is
maintained at the full level.
(4)
During the handling of fuel, while performing any PMCS procedure, or while refueling, be sure that sand or
dust is not allowed to enter fuel or lubrication system.
d. Operation in Salt Water Areas. The nature of salt presents serious corrosion problems. Frequent cleaning is
necessary during which all exposed surfaces should be thoroughly sprayed, rinsed, or sponged with fresh water to
remove salt.
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