Lubrication Of The Slewing Ring; Lubrication Of The Cross Joint And The Horizontal Slide - JUNTTAN PM 20L Operator's Manual

JUNTTAN
7.7

LUBRICATION OF THE SLEWING RING

Lubricate the ball races of the slewing ring and
pinion gear after every 40 hours of operation or
once a week - more often in tropical and humid
conditions.
There are lubrication pipes to the ball races of the
slewing ring with grease nipples (1) in the
hydraulic compartment. Grease each nipple with a
grease gun. Rotate the machinery deck during
greasing. Continue for one complete revolution.
The object is to maintain an adequate amount of
grease in the ball races, and to have a small
amount exuding slightly all around the seal.
The purpose of the exuding grease is firstly to keep water and dirt out of the ball races
and secondly to indicate that the ball races are greased uniformly over their full length.
It is more important to lubricate at regular intervals than to have excessive amount of
exuding grease. In order to prevent damage due to water, you must grease the slewing
ring every time you wash the machine. Use a brush to spread adhesive grease for open
gearing on the pinion gear of the slewing ring.
7.8 LUBRICATION OF THE CROSS JOINT AND THE
HORIZONTAL SLIDE
Lubricate the cross joint through the
grease nipples (1) daily. To grease the
nipples on the top of the cross joint,
raise the leader foot. To grease the
nipples on the underside of the cross
joint push the leader foot down (so that
the machinery deck lifts up slightly).
Lubricate the bottom and sides of the
horizontal slide weekly. Fully extend
the horizontal slide and push the leader
foot to the ground to obtain necessary
clearance. Spread grease with a brush
on the bottom of the horizontal slide,
and in the gap between the beams if
any.
Routine service section
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