TM 5-3810-295-34
Table 2-1
Troubleshooting-Continued
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
Step 7.
Check for incorrect valve and injector timing.
Time valves and injectors as described in paragraph 4-9 (crane) and chapter 14-15 (carrier).
Step 8.
Check injector adjustment.
Adjust injectors as described in paragraph 3-59 (crane) or paragraph 14-14 (carrier).
Step 9.
Worn or scored pistons or cylinder liners.
Repair pistons or liners as described in paragraph 4-38 or paragraph 14-31 (carrier) or overhaul
engine as described in DMWR-5-3810-295.
8.
INSUFFICIENT POWER.
Step 1.
Check injector adjustment.
Adjust injector as described in paragraph 3-59 (crane) or paragraph 14-14 (carrier).
Step 2.
Check for incorrect fuel pressure.
Step 3.
Check air intake lines and air cleaner for restrictions.
Clean intake lines and air cleaner or replace cleaner. See TM 5-3810-295-12.
Step 4.
Check for restricted fuel lines.
Clean fuel lines as described in TM 5-3810-295-12.
Step 5.
Check for leaks in fuel lines.
Repair leaks or replace damaged fuel lines as described in TM 5-3810-295-12.
Step 6.
Check for plugged injectors.
Clean injectors as described in paragraph 3-64 (crane) or paragraph 14-12 (carrier).
Step 7.
Check for loose head bolts or damaged gasket (loss of compression).
Tighten head bolts or replace gasket as described in paragraph 4-9 (crane) or paragraph 14-21
(carrier).
Step 8.
Check for incorrect valve and injector timing.
Time valve and injectors as described in paragraph 4-8 (crane) or paragraph 14-15 (carrier).
Step 9.
Check for internal dam age such as: worn cylinder liner, broken piston rings, and damaged rod
Repair engine as described in paragraph 4-38 (crane) or paragraph 14-31 (carrier) or overhaul
engine, if necessary, as described in DMWR 5-3910-295.
9.
EXCESSIVE FUEL CONSUMPTION.
Step 1.
Check for incorrect fuel pressure.
Replace or repair fuel pump as described in paragraph 3-52 (crane) or paragraph 13-22 (car-
rier).
Step 2.
Check for leaks in fuel system.
Repair leaks or replace damaged lines described in TM 5-3810-295-12.
10.
LOW LUBRICATING OIL PRESSURE.
Step 1.
Check for low oil level.
Fill crankcase with appropriate oil.
Step 2.
Check for restriction in oil suction line.
Clean oil passages as required.
Step 3.
Check for incorrect bearing clearance.
Reinstall bearings described in paragraph 4-38 (crane) or paragraph 14-38 (carrier).
Step 4.
Check engine compression and decide if engine requires overhaul.
Overhaul engine as described in DMWR 5-3810-295.
11
LUBRICATION OIL TEMPERATURE TOO HIGH.
Step 1.
Check for water pump damage.
Repair or replace water pump as described in paragraph 3-19 (crane) or paragraph 13-16 (car-
rier).
Step 2.
Check for faulty or damaged thermostat.
Replace thermostat as described in TM 5-3810-295-12.
Step 3.
Damaged or clogged oil cooler.
Repair or replace oil cooler as described in paragraph 3-25 (crane) or paragraph 13-11 (carrier).
Change 1 2-4
