Section IV. PREVENTIVE MAINTENANCE CHECKS AND SERVICES
noted during operation which would damage the
4-6. General
equipment if operation were continued. All deficiencies
To insure that the earth auger is ready for operation at
and shortcomings will be recorded, together with the
all times, it must be inspected systematically so that
corrective action taken. on DA Form 2404 (Equipment
defects may be discovered and corrected before they
Inspection and Maintenance Worksheet) at the earliest
result in serious damage or failure The necessary
possible opportunity.
preventive maintenance checks and services to be
4-7. Preventive Maintenance Checks and Services
performed are listed as described in paragraph 4-7.
Preventive maintenance checks and services are listed
Defects discovered during operation of the earth auger
will be noted for future correction, to be made as soon
and described in table 4-1.
as operation has ceased. Stop operation immediately if
a
deficiency
is
Table 4-1. Preventive Maintenance Checks and Services
Interval
B Before operation
A After operation
M Monthly
Operator
Org
D During operaton
W Weekly
Q Quarterly
Item
Daily
M
Q
Number
Item to be
Procedure
References
B
D
A
W
inspected
1
X
Muffler & pipes
if there are signs of corrosion or
excessive rust.
2
X
Cooling system
Test radiator cap pressure. If cap
pressure is below recommended
pressure, replace cap. Test thermostat.
X
Replace it' faulty. Inspect thermostat
(para 4-1 7)
housing for leaks. Replace gasket If
required. Inspect all coolant hoses
X
for leaks.
3
,
X
Fan belt
Inspect fan belt. Replace badly worn
or frayed belt. Adjust as required.
4
X
Fan blade
Inspect for damage. If there are signs
(para4-16)
of damage, replace the fan blade.
5
X
Hydraulic system
Inspect and service strainer and filter.
Replace it' necessary. Inspect all
hydraulic hoses. Replace any worn or
broken hoses.
6
X
Hydraulic pump
Inspect pump. Replace pump if
inoperative or it' it produces insufficient
results.
7
X
Control valve
Inspect and adjust control valve. Replace
if necessary
8
X
Hydraulic motor
Inspect motor for defective condition
(para 4-22)
or unsatisfactory operation. Replace
defective motor.
9
X
Hydraulic reservoir
Inspect for insecure mounting. Inspect
tank for damage or deterioration.
Service breather cap. Replace tank
or cap It' necessary.
10
X
Engine
Inspect engine for damage. leaks, or
(4-31, Also Ford
unsatisfactory conditions. Service as
Maintenance/Service
required. Inspect engine support for
Manuals)
insecure mounting. Inspect crankcase
breather or cap. Replace if defective.
11
X
Valves and cover
Inspect valve cover for damage or leaks
(Ref. Ford Maintenance
Replace if not serviceable. Check
/Service Manuals)
gasket for cracks or breaks.. Replace
if defective. If noisy or loss of power
is noticed, make valve adjustments in
accordance with (Ford Maintenance
/Service Manuals).
4-2