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TM-5-4210-233-14P-1 Twin Agent 4x4 Firefighting Truck Model No. CM-KFT-B Manual
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OVERHEATS
TM 5-4210-233-14&P-1 Table 5-2.  Direct Support Troubleshooting - Continued MALFUNCTION TEST OR INSPECTION CORRECTIVE ACTION ENGINE - Continued 3 HARD TO START/STALLS AT IDLE SPEED/DOES NOT RUN SMOOTHLY - Continued Step 2.  Check for misfiring cylinders.  Start engine.  Hold injector follower down with a screwdriver to prevent operation of injector.  If cylinder has been firing properly, cylinder will miss with a noticeable change in sound and engine operation.  If cylinder has been misfiring, there will be no noticeable change.  Check all cylinders and tag misfiring injectors. Remove tagged injectors (see para 6-43). Test and repair injectors (see para 6-43). Step 3.  Repeat check for misfiring cylinder(s). If cylinder(s) still misfire, perform engine tune-up. Step 4.  Check engine compression.  lf minimum compression is not 450 psi (3101 kPa) at 600 rpm, 500 ft above sea level, remove air box covers (see para 6-11.).  Variation between cylinders must not exceed 25 psi (172 kPa).  Inspect compression rings through ports of cylinder liners. Replace damaged or broken compression rings (see para 6-33). 4 FAILS TO DEVELOP FULL POWER Step 1.  Perform engine tune-up. Step 2.  Check exhaust manifold for leaks. Tighten loose connections (see para 5-24). Replace damaged exhaust manifold gaskets (see para 5-24). Replace damaged exhaust manifolds (see para 5-24). Step 3.  Check if cylinder liner ports are clogged.  Remove air box covers (see para 6-11). Check and clean cylinder ports if clogged (see para 6-32). Step 4.  Inspect turbocharger for free movement. Replace or repair defective turbocharger (see para 5-23). Step 5.  Check operation of electronic engine control. Repair or replace electronic engine control (see para 5-28 and 6-28). 5-11

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