TM 9-2350-287-20-1
2-19. TROUBLESHOOTING CHART (continued).
c. ENGINE - COOLANT SYSTEM.
(1) ENGINE OVERHEATS.
Initial Setup:
Tools/Test Equipment:
l General Mechanic’s tool kit (Item 24,
Appendix I)
Equipment Conditions:
l Air intake grill opened (refer to
TM 9-2350-287-10).
l Protective fan screen installed (para 2-8).
WARNING
When engine is hot, remove radiator
cap slowly to relieve pressure.
Failure to follow this procedure may
result in severe injury.
To avoid burns, ensure engine and
coolant have cooled before
removing components. Failure to
comply may result in severe injury.
A protective fan screen must be
installed prior to doing maintenance
in the engine compartment when
the engine is running or engine is in
ground hop mode. Contact with
rotating fan can cause injury.
A. 1. Remove radiator cap and start engine
(refer to TM 9-2350-287-10).
2. After engine has idled for 3-5 minutes,
look inside radiator to see if coolant is circu-
lating.
Does coolant fluid start to circulate?
Notify Direct Support maintenance.
B. Check for bulging, collapsed, or leaking cool-
ant hoses or tubes.
Are there restrictions or collapsed hoses and tubes?
Continued to next page
2-50
