3 – 30
MAINTENANCE
UNUSEAL
5. Special attention must be given to the
hydraulic oil during very cold weather.
BEFORE
attempting any working
operations, warm up the hydraulic oil as
described in “After Starting the Engine
on Sheet No.3-6”.
6. At the end of the work period, or whenever
the machine is to be left idle for extended
periods, prevent it from being frozen to the
ground by parking it on wood, concrete,
asphalt or mat surface.
Extreme Heat.
Like extreme cold, extreme heat requires that
precautions be taken with respect to the
cooling system, the battery and lubrication.
Protect the machine by performing the
following recommended procedures:
1. High temperatures necessitate the use of
lubricants which are both more viscous and
which resist deterioration at higher
operating temperatures. Refer to the
Lubrication Section and lubricate the
m a c h i n e u s i n g t h e l u b r i c a n t s
recommended for the expected
temperatures.
Crankcase oil is particularly important
because it helps dissipate heat. Check the
oil level frequently and add oil as required
to maintain required level. Too little oil will
hinder heat dissipation.
2. To ensure proper coolant circulation, drain
and flush the cooling system, clean any
foreign matter from the radiator cooling fins
and through-core air passages, replace
defective hoses, tighten hose clamps,
tension the water pump drive belt properly.
eliminate any leaks detected and fill the
system with a 50% solution of ethylene
glycol.
A corrosion inhibitor is recommended.
Engine overheating due to loss of coolant
will most often be corrected by
SLOWLY
adding coolant while the engine is running
at
FAST IDLE
. Should this fail to correct
the problem, drain and flush the system
and refill with fresh coolant (50% solution
of ethylene glycol) and a corrosion inhibitor.
Allow the engine to cool before draining and
flushing the cooling system.
Water containing more than small
concentrations of salt or minerals should
not be used in the cooling system. Salt
facilitates corrosion and minerals deposit
on the coolant passage walls.
Both processes inhibit proper cooling.
3. Increased evaporation rates will cause the
battery electrolyte level to fall more rapidly
during very hot weather. Check the level
frequently and add distilled water as
required to maintain the proper level.
4. Air circulation around the engine and
battery must not be restricted. Keep air
intake and exhaust openings clear of
leaves, paper or other foreign matter which
may restrict air flow.
5. Keep the engine clean of dirt. grease and
other substance s which inhibit heat
dissipation.
6. Operate engine at full throttle when digging
or tracking machine.
Run the engine only when engaged in work
operations or when traveling the machine.
Avoid prolonged periods at idle and shut
the engine down if operations are
interrupted.
Sandy or Dusty Work Sites
The presence of large amounts of sand or dust
at the work site can contribute to accelerated
component weather. Either substance win act
as an abrasive when deposited on moving
parts of the machine.
This problem can be alleviated by increasing
the schedule of lubrication and by servicing
breathers and fillers at more frequent intervals.
Follow the recommendations below when
operating in sand or dust on a regular bases.
CAUTION
Summary of Contents for 17VXE
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