TM-9-2320-361-24-1 Field Maintenance Manual Volume 1 for M44A2 Series Trucks
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TM 9-2320-361-24-1 0018 00 0018 00-28 SIMPLIFIED TEST EQUIPMENT FOR INTERNAL COMBUSTION ENGINE— REPROGRAMMABLE STE/ICE-R NO-GO CHAIN TROUBLESHOOTING (Contd) Table 2. STE/ICE-R No-Go Chain Test (Contd). YES NO GOVERNOR/POWER TEST FAULT ISOLATION NG90 TK MODE REMOVE AIR CLEANER–REPEAT POWER TEST: • Remove air cleaner (WP 0052 00) from air intake housing. • Repeat power test—GO 7, step 2. • Does engine pass power test with air cleaner out? 1 NOTE Test GO 1 (WP 0017 00), VTM Connections and Checkout, must be performed before running any other STE/ICE-R test. NOTE If vehicle has failed power test, start with step 1. If vehicle has failed governor checks, start with step 2 on next page. CAUTION Check that air inlet is clear of tools, debris, dirt, and dust before performing following test. Failure to do so may cause damage to engine when vehicle is started. • Install new air cleaner element (WP 0052 00). • Reinstall air cleaner. CAUTION • Do not perform more than 2 compression unbalance tests in a row to prevent discharge of vehicle batteries. • Engine must be at normal operating temperature before performing compression unbalance test to ensure accurate compression unbalance results. NOTE The compression unbalance test takes approximately 15 seconds to run. • Proceed to next page. NOTE After completing repair, rerun GO Chain tests (WP 0017 00) to verify that problem is fixed and no other problems exist.