Interval
B Before operation A After operation
M Monthly
Operator
Org
D During operaton W Weekly
Q Quarterly
Item
Daily
Number
M
Q
Item to be inspected
Procedure
References
B
D
A
W
4
X
Air cleaner hoses
Inspect for loose connections or breakage
in hose. Tighten any loose connections,
and, if breakage is detected, refer to
organizational maintenance for repair.
5
X
X
Fuel lines and tank
Inspect fuel hose for leaks. Inspect and
service fuel tank.
6
X
Transmission
Check oil level and service as required.
Section IV. TROUBLESHOOTING
are listed in table 3-2 Each malfunction stated is follow
3-6. General
by a list of probable causes of the trouble The corrective
This section contains information useful to the operator
action recommended is described opposite the probable
in diagnosing and correcting unsatisfactory operation or
cause.
failure of the earth auger Malfunctions which may occur
Table 3-2. Troubleshooting
Malfunction
Probable cause
Corrective action
1. Engine hard to start or fails to start.
a. Fuel tank empty.
a. Fill the fuel tank (para 3-9).
b. Fuel valve closed.
b Open fuel valve on fuel line under fuel tank.
c. Fuel contaminated.
c. Drain fuel tank and fill with clean fuel
2. Engine misses or runs erratically.
Contaminated fuel.
Drain and refill fuel tank (para 3-9).
3. Engine stops suddenly.
a Fuel tank empty.
a. Service the fuel tank (para 3-9).
b. Water or dirt in fuel.
b Drain and refill fuel tank (para 3-9).
c. Fuel line broken.
c Inspect fuel line and report any discrepancies
to organizational maintenance.
4. Engine overheats.
a. Fan belt loose or broken.
a. Check and adjust fan belt (para 4-15). Proper
adjustment is 1/2 inch deflection between
pulleys. Refer broken belt condition to
organizational maintenance.
b. Coolant level low.
b. Add coolant (para 3-8).
c Clogged radiator cooling fins.
c Clean radiator exterior cooling fins with a
soft brush or wisk broom.
5. Engine oil pressure low.
Crankcase oil level low.
Fill to correct level (Lube diagram).
6. Engine knocks or develops excessive
a. Crankcase oil level low.
a. Fill to correct level (Lube diagram).
noise.
b. Excessive load on gear train.
b. Reduce load or change gears.
7. Engine exhaust smoky.
a. Crankcase oil level too high.
a. Drain crankcase to proper level (Lube
a. Mostly blue color diagram).
b. Mostly black color
b. Engine cold causing poor combustion.
b. Allow engine sufficient time to warm up.
c. Choke not open.
c. Open choke.
8.
9. Excessive leakage of hydraulic fluid
Loose packing.
Tighten packing nut (para 3-12).
from the lower packing nut.
3-2
