SUNWARD SWE150F, Руководство по эксплуатации и техническому обслуживанию

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3.4.7 Warm up machine operation in cold
weather
Note

When hydraulic oil temperature is
below 25 ℃ , operating machine in
this circumstances can cause sudden
movement and stop, the machine will
become hard to maneuver. And
accidents may occur.

When the engine is difficult to be
started, it’s necessary to carry out
warm up operation.
 With engine started, cancel auto-idle, adjust
throttle knob to low speed position (approx.
1200r/min) to allow the engine to idle for 5
seconds.
 Adjust throttle knob to set engine revs to 1500
rpm, operate bucket to perform “dig” —
“dump” blank action for 5 minutes without
attempting any other actions.
 Engage engine speed at 1500 rpm, operate
bucket and arm to act to full stroke for 5
minutes.

Adjust throttle knob to speed up engine rev to
high speed position (approx. 2000r/min), cycle
the following operations for 3-5 times. ：
 Boom up ←→ down movement
 Arm fold ←→ extend
 bucket digging ←→ dump
 turret left swing ←→ right swing
 complete machine forward ←→ reverse
 With warm-up operation done, check gas
discharging, noise and all other actions. If the
machine is functioning properly, proceed to
work. If not, keep carrying out step 4 until it’s
functioning properly.