MAINTENANCE
32
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C en
CAUTION:
Start the machine (refer to PRIOR TO
STARTING and STARTING THE UNIT in the
OPERATING INSTRUCTIONS section of this manual)
and check for leakage before the machine is put back
into service.
COMPRESSOR OIL COOLER AND ENGINE
RADIATOR
When grease, oil and dirt accumulate on the exterior surfaces of the
oil cooler and radiator, the efficiency is impaired. It is recommended
that each month the oil cooler and radiator be cleaned by directing a
jet of compressed air, (carrying if possible a non
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flammable cleaning
solvent) over the exterior core of the cooler/radiator. This should
remove any accumulation of oil, grease and dirt from the exterior
core of the cooler so that the entire cooling area can radiate the heat
of the lubricating and cooling oil/water into the air stream.
WARNING: Hot engine coolant and steam can cause
injury. When adding coolant or antifreeze solution
to the engine radiator, stop the engine at least one
minute prior to releasing the radiator filler cap.
Using a cloth to protect the hand, slowly release the
filler cap, absorbing any released fluid with the
cloth. Do not remove the filler cap until all excess
fluid is released and the engine cooling system fully
depressurised.
WARNING: Follow the instructions provided by the
antifreeze supplier when adding or draining the
antifreeze solution. It is advisable to wear personal
protective equipment to prevent skin and eye
contact with the antifreeze solution.
AIR FILTER ELEMENTS
The air filter should be inspected regularly (refer to the
SERVICE/MAINTENANCE CHART
) and the element replaced when
the restriction indicator shows red or every 12 Months (1000 hours),
whichever comes first. The dust collector box(es) should be cleaned
daily (more frequently in dusty operating conditions) and not allowed
to become more than half full.
REMOVAL
CAUTION:
Never remove and replace element(s) when
the machine is running.
Clean the exterior of the filter housing and remove the filter element
by releasing the nut.
INSPECTION
Check for cracks, holes or any other damage to the element by
holding it up to a light source, or by passing a lamp inside.
Check the seal at the end of the element and replace if any sign of
damage is evident.
REASSEMBLY
Assemble the new element into the filter housing ensuring that the
seal seats properly.
Reset the restriction indicator by depressing the rubber diaphragm.
Assemble the dust collector box parts, ensuring that they are
correctly positioned.
Before restarting the machine, check that all clamps are tight.
VENTILATION
Always check that the air inlets and outlets are clear of debris etc.
CAUTION:
Never remove and replace element(s) when
the machine is running.
COOLING FAN DRIVE
Periodically check that the fan mounting bolts in the fan hub have
not loosened. If, for any reason, it becomes necessary to remove
the fan or re
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tighten the fan mounting bolts, apply a good grade of
commercially available thread locking compound to the bolt threads
and tighten to the torque value shown in the
TORQUE SETTING
TABLE
later in this section.
The fan belt(s) should be checked regularly for wear and correct
tensioning.
FUEL SYSTEM
The fuel tank should be filled daily or every eight hours. To minimise
condensation in the fuel tank(s), it is advisable to top up after the
machine is shut down or at the end of each working day. At six
month intervals drain any sediment or condensate that may have
accumulated in the tank(s).
FUEL FILTER WATER SEPARATOR
The fuel filter water separator contains a filter element which should
be replaced at regular intervals (see the
SERVICE/MAINTENANCE
CHART
).
CHARGE AIR COOLER PIPEWORK
Inspect all hoses and clips on the charge cooler pipe work.
Engine damage will occur if the charge cooling system leaks.
HOSES
All components of the engine cooling air intake system should be
checked periodically to keep the engine at peak efficiency.
At the recommended intervals, (see the
SERVICE/MAINTENANCE
CHART
), inspect all of the intake lines to the air filter, and all flexible
hoses used for air lines, oil lines and fuel lines.
Periodically inspect all pipework for cracks, leaks, etc. and replace
immediately if damaged.
ELECTRICAL SYSTEM
WARNING: Always disconnect the battery cables
before performing any maintenance or service.
Inspect the safety shutdown system switches and the instrument
panel relay contacts for evidence of arcing and pitting. Clean where
necessary.
Check the mechanical action of the components.
Check the security of electrical terminals on the switches and relays
i.e. nuts or screws loose, which may cause local hot spot oxidation
.
Inspect the components and wiring for signs of overheating i.e.
discolouration, charring of cables, deformation of parts, acrid smells
and blistered paint.
BATTERY
Keep the battery terminals and cable clamps clean and lightly coated
with petroleum jelly to prevent corrosion.
The retaining clamp should be kept tight enough to prevent the
battery from moving.
