OPERATION
Cold weather operation
Precautions after completion of work
3-105
Precautions after completion of work
0.
To prevent mud, water, or the undercarriage from freezing and making it impossible for the machine to move on
the following morning, always observe the following precautions.
Remove all the mud and water from the machine body. In particular, wipe the hydraulic cylinder rod clean to
prevent damage to the seal caused by mud or dirt on the rod surface getting inside the seal together with drops
of water.
Park the machine on hard, dry ground.
If this is impossible, park the machine on wooden boards.
The boards help protect the tracks from being frozen in soil and the machine can start next morning.
Open the drain valve and drain any water collected in the fuel system to prevent it from freezing.
After cold weather
0.
When season changes and the weather becomes warmer, do as follows.
Replace the fuel and oil for all parts with oil of the viscosity specified.
For details, see “Fuel, coolant and lubricants on page 4-8“.
If for any reason permanent antifreeze cannot be used, and an ethyl glycol base antifreeze (winter, one season
type) is used instead, or if no antifreeze is used, drain the cooling system completely, then clean out the inside
of the cooling system thoroughly, and fill with fresh soft water.
Warming-up operation for steering hydraulic circuit in cold weather
0.
WARNING
If the steering wheel is operated and stopped while the oil
temperature is low, there may be a time lag before the
machine stops turninig.
In this case, use the safety bar to ensure safety, and per-
form the warm-up operation in a wide place.
Do not relieve the hydraulic oil in the circuit continuously
for more than 5 seconds.
When the temperature is low, do not start the operation of the
machine immediately after starting the engine.
Warming up steering hydraulic circuit
Slowly operate the steering wheel to the left and right to warm
up the oil in the steering valve. (Repeat this operation for about
10 minutes to warm up the oil.)
NOTICE
Operate the steering wheel a little and stop in that position. Then, confirm that the machine is steered by
an angle equivalent to the turning angle of the steering wheel.
9EA04781A
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Summary of Contents for WA250PT-5H
Page 2: ......
Page 3: ...FOREWORD 11...
Page 16: ...Contents FOREWORD 1 14...
Page 24: ...SAFETY 2 2...
Page 58: ...Precautions with tires SAFETY Precautions when storing tires 2 36...
Page 60: ...OPERATION 3 2...
Page 233: ...TECHNICAL DATA 45...
Page 235: ...TECHNICAL DATA Technical data 5 3...
Page 250: ...Central lubrication system ATTACHMENTS OPTIONS 6 14...
Page 251: ...INDEX 67...
Page 252: ...INDEX 7 2...
Page 255: ...Index 7 5...
