SWDM40 OPERATION & MAINTENANCE MANUAL
FIG. 8-3-10 Swivel Joint Structure
Special note: The plug M10X1 on the other side should be unscrewed when injecting grease
into the grease cup from one end of the swivel joint. In this way, the used lubricating grease can
be squeezed out. Failure to comply may damage the oil seal of the swivel joint, mix impurity
into grease, such as fine sediment, and lead to the reduction in flexibility, using performance
and stability of the swivel joint.
2）If swivel joint is still difficult to rotate after lubrication, repair or change it.
3）Replace parts or swivel joint with original specification for safety.
Lubrication requirements：
1）Apply lubricating grease once every day. Use #2 lithium base lubricating grease in summer
and #1 lithium base lubricating grease in winter.
2）Check swivel joint for secure when applying lubricating grease at every time, if loosened,
fasten in time.
3）Check upper and lower pin shafts which link with the swivel joint when applying lubricating
grease at every time, if loosened, fasten in time.
4）After applying lubricating grease, rotate the upper end of the swivel joint when there’s no
load, if it can’t swing or is blocked, repair or change at once.
5）When working on the area with the temperature under 0℃, clean swivel joint in time, wipe
with clean cloth and apply anti-freeze grease on the junction surface to avoid rotary junction
surface freezing on the ground. Before next shift, turn the upper end of swivel joint with hands
to check for freeze. If frozen, thaw with hot water and wipe out, and then check the flexibility
before operation.
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