TM 5-4220-211-12&P
CHAPTER 2
PREPARATION FOR USE
Section I
GENERAL INFORMATION
2-1.
GENERAL. The Diving Equipment Set is shipped fully assembled with the drive belt loosened. To prepare the
equipment for use, carefully unpack all components and perform the following inspections and servicing.
a.
Remove all packing material.
b. Check all components against the packing list and Figure D-1 Report any damaged or missing items to the
proper authority.
c.
Install new purifier cartridge in accordance with the instructions in paragraph 4-4.
d.
Adjust drive belt tension in accordance with the instructions in paragraph 4-4.
e.
Service engine oil bath air cleaner in accordance with the instructions in paragraph 4-4.
f.
Check the oil level in the compressor crankcase with the combination oil fill plug and dipstick (19, Fig. 1-3).
Wipe off the dipstick with a clean lint free cloth and reinsert the dipstick to determine the oil level. Dipstick must be
screwed all the way down when checking oil. The crankcase oil level should be between the upper and lower marks on
the dipstick. If the oil level is below the lower dipstick mark, add oil to raise the oil level to the upper dipstick mark. Oil
must conform to the requirements shown in table 2-1.
Oil level must not be higher than the upper dipstick mark.
Compressor damage can occur if the oil level is too high.
Table 2-1. COMPRESSOR OIL
Weather Condition
Specification
Normal Weather
MIL-L-17331 (2190-TEP)
Cold Weather
MIL-H-17672 (2135-TH)
For normal weather operation, use oil conforming to
Specification MIL-L-17331 (2190-TEP). For cold weather
operation, use oil conforming to Specification MIL-H-17672
(2135-TH).
g. Check the oil level in the engine crankcase with the engine oil dipstick (4, Fig. 1-3). Wipe off the dipstick with
a clean lint free cloth and reinsert the dipstick to determine the oil level. The crankcase oil level should be up to the upper
dipstick mark. If the oil level is low, add oil to bring the level up to the upper dipstick mark. Oil must conform to the
requirements shown in Table 2-2. When checking engine oil level push dipstick in until cap bottoms on tube.
Change 1 2-1
