Daily Inspection
and Maintenance of Explosion-proof Hydraulic Winch

Carefully check whether the bolts, pins, nuts and other connecting parts of the
winch are loose or fall off, and deal with the problems in time.

When there is no lifting load, check the uniformity of the disc brake release
to ensure that the gap is basically the same and does not exceed the specified
value; check whether the test pedal emergency brake switch is standard.

Check whether the axial plunger oil pump and the vane oil pump work normally
and whether there is vibration and noise. When the handle is slightly moved in
the positive and negative directions, see whether it can realise the positive
and negative rotation of the winch drum.

Check whether the oil level indication in the fuel tank reaches the specified
position (or mark), whether the oil temperature meets the specified
requirements, and check whether the cooling water passing through the cooler is
sufficient and smooth.

Regularly clean the oil pool and filter, it is strictly forbidden to have solid
free matter in the oil pool, and a large number of air bubbles in the hydraulic
oil should be exhausted in time.

Check the transmission of the depth indicator screw nut, and test the over-roll
protection switch.

Check whether the wire ropes are neatly arranged on the drum and whether the
rope heads are fixed firmly.

Carefully check whether there is oil leakage at each pipeline valve group, pipe
joints, etc., and if they are not qualified, they should be tightened and dealt
with in time.

Carefully check whether the instruments on the operating table are normal, test
whether each operating button switch is flexible and accurate, and check the
electrical control switches and contacts for burnout. Those who fail should
report or replace them in time.

Wipe the equipment frequently, do a good job of environmental sanitation, and
keep the machine clean and bright.