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Excessive Engine Vibration
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TM-5-2410-233-23 Tractor Full Tracked Low Speed: DED Medium Drawbar Pull Manual
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Low Oil Pressure. - TM-5-2410-233-230057
TM 5-2410-233-23
TROUBLESHOOTING PROCEDURES - CONTINUED
0006 00
Table 1. Engine Troubleshooting Procedures - Continued.
MALFUNCTION
TEST OR INSPECTION
CORRECTIVE ACTION
3. Perform cylinder cutout test 1. If fuel pressure at suspect
10. Engine Knocks (Fuel Knock) - Continued.
cylinder fuel injection nozzle
appears to be equal to pressure
at all other fuel injection
nozzles, replace fuel injection
pump as necessary (WP 0051
2. If pressures are not equal,
remove blockage from nozzle-
to-pump fuel line or replace
nozzle for suspect cylinder
4. Check fuel injection timing Adjust timing, if necessary (WP
Mechanical Engine has internal damage.
Replace engine assembly (WP
11. Engine
Knocks
(Excessive
Noise).
12. Excessive Noise From Valve Mechanism 1. Check valve clearance.
Adjust valves (WP 0017 00).
(Clicking Sound).
2. Inspect valve mechanism. 1. Replace  damaged  compo-
Check valve springs and
nents.
locks. Damaged or worn locks 2. Replace
cylinder
head
can cause valve to fall into
assembly (WP 0023 00).
cylinder, resulting in serious
engine damage.
1. Check engine oil level for If dipstick indicates excessive oil,
13. Excessive Oil Consumption.
over filling.
drain crankcase to safe operating
2. Check for external oil leaks.
a. Clean edges of rocker arm If leak (s) are found, tighten nuts,
cover, oil pan, oil filter, screws, lines and fittings and oil
turbocharger, engine oil filter.
cooler and other external
engine  surfaces.  Start
engine and check for leaks.
b. Check for oil leakage at If leakage is found, replace
inlet turbocharger (WP 0046 00).
turbocharger
to
manifold connection.
3. Check for a plug in each end Replace rocker shaft if missing.
of rocker shaft (WP 0017 00).
4. Engine has internal damage.
Replace engine assembly (WP

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