Table 3-1. Preventive Maintenance Checks and Services

TM 5-6640-214-14

Table 3-1. Preventive Maintenance Checks and Services

NOTE: Within designated interval, these checks are to be performed in the Order listed.

B - Before

A - After

M - M onthly

D - During

W - Weekly

C - Combat Operability Check

Interval

Item to be

Procedures

Equipment will

Item

Inspected

Check for and have repaired

be reported Not

No.

AWM

or adjusted as necessary.

Ready (Red) if:

Pump

Remove top plate and fill

with special vacuum pump

oil until it is slightly above

oil level as indicated in

window on side of pump.

In operation, the oil should

be even with or slightly

above the oil level. If

insufficient oil is used,

a good seal around the

pump vanes will not be

maintained. Too much

oil may back up through

the pump trap into the

vacuum line. Whenever

oil in pump is changed,

pump must run for some

time on a closed system

before lowest pressure

is obtained.

Low Tem-

Defrost the ice cube

perature

compartment and lubricate.

Kinematic

the fan motor, check lines

Viscosim-

and fittings.

eter

Cabinet

3-5