TM-9-2350-247-20-1 Unit Maintenance Manual Volume 1 M548A1 M548A3 Tracked Cargo Carrier Download
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TM 9-2350-247-20-1 COOLANT HEATER MALFUNCTIONS 0086 00 INITIAL SETUP: M a i n t e n a n c e L e v e l Unit T o o l s a n d S p e c i a l T o o l s General Mechanic’s Tool Kit (WP 0541 00, Item 57) Multimeter (WP 0541 00, Item 29) Slip Joint Pliers (WP 0541 00, Item 33) P e r s o n n e l R e q u i r e d Unit Mechanic R e f e r e n c e s See your -10 E q u i p m e n t C o n d i t i o n Engine stopped (see your -10) Carrier blocked (see your -10) Heater on HI (see your -10) Engine cold T 1. Press HEATER ON indicator cover lens (see your -10). 2. Does indicator light come on? YES NO GO TO BY (PAGE 0086 00-2) Y 1. Release HEATER ON indicator. 2. Move HEATER SWITCH to START. 3. Does heater blower come on? YES NO GO TO CY (PAGE 0086 00-4) 2Y 1. Check if heater fuel pump comes on. 2. Does heater fuel pump come on? YES NO GO TO EY (PAGE 0086 00-6) 3Y 1. Check if coolant circulating pump comes on. 2. Does coolant circulating pump come on? YES NO GO TO GY (PAGE 0086 00-8) 4Y 1. Check if HEATER ON indicator comes on in less than 3 minutes. 2. Does HEATER ON indicator come on in less than 3 minutes? YES NO GO TO HY (PAGE 0086 00-9) 0086 00-1