2-23
PREVENTIVE MAINTENANCE CHECKS AND SERVICES
Q-QUARTERLY
S-SEMIANNUALLY
A-ANNUALLY
B-BIENNIALLY
H-HOURS
MI-MILES
Change 4
ITEM TO BE
INSPECTED
Coolant (cont).
PROCEDURE
D
E
F
Insert tip of bulb-type syringe (6) into radiator filler neck (7) well below coolant
level. Press and release bulb (8) to draw up sample of coolant.
Depress bulb (8), ejecting a few drops of coolant onto measuring window (2) of
duo-check coolant tester.
WARNING
Do not look into inbred (blackout) light. If using headlight as
a light source, look into white light only. Infared light can
injure the eyes.
TM 9-2350-267-20