MAINTENANCE 9VX3
5. Special attention must be given to the hydraulic
oil during very cold weather.
f ! l CAUTION |
BEFORE atten
warm up the
“After Starting I
npting any wort
hydraulic oil a
the Engine on S
ting operations,
s described in
Iheet No.2-6”.
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 machine using the lubricants
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
substances, 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.
4-11-2
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