TM 9-2350-247-20-1 PREVENTIVE MAINTENANCE CHECKS AND SERVICES (PMCS), INCLUDING LUBRICATION INSTRUCTIONS — Continued 0128 00 ITEM NO. INTERVAL MAN- HOUR ITEM TO BE CHECKED OR SERVICED CREWMEMBER PROCEDURE EQUIPMENT NOT READY/ AVAILABLE IF: 78 Semi- Annual Steering Forward and Reverse Range a.  Check steering in forward range and in reverse range. If carrier does not make a complete turn, troubleshoot steering system (WP 0006 00). Binding, grabbing, unusual noise, vibration or carrier fails to turn. 79 Semi- Annual Carrier Braking a.  Check carrier braking. If carrier does not stop when brakes are applied, troubleshoot brake system (WP 0068 00). Carrier fails to stop. 80 Semi- Annual Carrier Shifting in All Ranges a.  Check shifting of carrier in all ranges. If carrier does not respond properly to selected driving range, troubleshoot gear selection (WP 0006 00). Carrier fails to shift into selected range. 81 Semi- Annual After Road Test a.  Immediately after road test, cautiously feel all wheel and idler hubs for noticeable difference in temperature between hubs. An overheated hub indicates that bearing is out of adjustment, poorly lubricated, or unserviceable. Any Class III leaks, cold shocks, or bad bearings. b.  Check temperature of shock absorbers. Shock absorbers should be warm. A cold shock absorber has failed, replace it (WP 0379 00). c.  Visually check inside, outside, and underneath of carrier for fuel, oil, or hydraulic leaks. Any Class III leak or fuel leak. 82 Semi- Annual Idle Test CAUTION Avoid lengthy engine idling. This causes coolant temperature to drop below operating temperature and can shorten engine life. NOTE After a successful road test, perform engine idle and governed no load test only. a.  Run engine at 800 to 1000 rpm for 3–5 minutes with range selector in 2–3 range and brakes locked until normal operating temperature is reached. Engine runs hot or rough. 0128 00-88