Warming Up Operation; Finger Type; Multi-Function Type - Hitachi ZW180 Operator's Manual

WARMING UP OPERATION

If the machine is excessively operated with the hydraulic oil
temperature below 20 °C, damage to the hydraulic compo-
nents may result. After starting the engine, sufficiently perform
warm up operation as described below before operating the
machine until the hydraulic temperature increases to higher
than 20 °C.
1. While slightly depressing accelerator pedal, run the en-
gine at medium speed for about 5 minutes with no load.
2. Increase the engine speed to the maximum. Raise the
bucket above the ground and hold bucket control lever
(1) in the tilt position for 10 seconds. (Do not operate
controllers other than the bucket control lever at this
time.)
WARMING UP OPERATION IN COLD WEATHER
IMPORTANT: In case the hydraulic oil temperature is low,
perform warm up operation. Operate the
machine only after the loader front operat-
ing speed becomes normal. Be sure to per-
form warm up operation not only to protect
the hydraulic components from being dam-
aged but also to ensure safe operation.
1. Run the engine at slow idle speed fore more than 5 min-
utes.
2. Run the engine at medium speed for 5 minutes.
NOTE: Do not run the engine at slow or fast speed at this time.
3. Fully extend the bucket cylinder.
NOTE: Do not continuously operate the bucket control lever
for more than 30 seconds at this time.
4. Fully retract extend the bucket cylinder.
NOTE: Do not continuously operate the bucket control lever
for more than 30 seconds at this time.
5. Repeat steps 2 to 4 above until the bucket operating
cycle time becomes normal. When the atmospheric tem-
perature is extremely low, extend the engine running
time at medium speed.
OPERATING THE ENGINE
3-8
1

Finger Type

1
N

Multi-Function Type

M4GB-01-043
M4GB-01-008