SUNWARD SWDM40 - Checking Hydraulic Oil Level and Quality; Checking Gear Oil Level for Reduction Gearbox

SWDM40 OPERATION & MAINTENANCE MANUAL
180
8.3.13 Checking Hydraulic Oil Level and Quality
Warning!
 If hydraulic oil is hot, please don’t remove the filling plug, air outlet plug on the
hydraulic tank, failure to comply may result in the damage of oil pump caused by
air entering into the hydraulic system.
 If air enter into the hydraulic system, it will damage the oil pump.
 Hot oil and component may get people hurt, thus, please don’t allow that to touch
your skin.
1. Park the machine on level ground, open the side door to visually inspect the hydraulic level
gauge and check hydraulic oil level and quality:
(1) The hydraulic oil level should not lower than the indicate line of red zone during operation;
(2)The hydraulic oil level should not lower than the indicate line of yellow zone during
transport;
(3) Visually check the hydraulic quality, if it turns to black or white, please change it at once.
FIG. 8-3-16
8.3.14 Checking Gear Oil Level for Reduction Gearbox
■ The machine should be shut down when checking gear oil level for reduction gearbox;
■ Any one of following methods can be used:
（1）Visual inspection for reduction gearbox sight glass, the oil level should be above 1/2 of the
sight glass;
（2）Take out gear oil dipstick to measure oil level, which approaches to the highest scale;
（3）Screw off the inspection hole plug to check oil level, and gear oil flows out.
■ The machine should be parked on level ground to check gear oil for main winch reduction
gearbox; Erect the drill mast vertical to check gear oil level for Rotary drive reduction gearbox
and crowd winch reduction gearbox.
■ Inspection after running, the machine should be shut down for over than 30 minutes to cool
down. If plug should be screwed off or the level dipstick should be taken out, wear protective
gloves when checking oil level, beside, unscrew the plug slowly to release inner pressure in the
Hydraulic Oil Level Warning Label
Green: safe oil level
Yellow: warning oil level
Red: dangerous oil level
Level
gauge of
hydraulic
tank