Hitachi ZAXIS 30U-5N User Manual

MAINTENANCE
7-82
Replace Rubber Crawler
--- as required
d
WARNING:
 Do not loosen valve (1) too quickly or too much as
high-pressure grease in the adjusting cylinder may
spout out. Loosen carefully, keeping body parts and
face away from valve (1). Never loosen grease fitting
(2).
 When removing the rubber track, do not allow
anyone to stand in front of the front idler. During
this procedure, the high power track adjuster may
suddenly release the front idler with extreme force,
potentially resulting in personal injury or death.
 After the rubber track is removed, the front idle will
become free to remove. If the front idle comes off
unexpectedly, personal injury and/or death may
result. Be sure to remove the rubber track only after
taking appropriate measures to prevent the front
idler from coming off.
Removing Rubber Crawler
1. Lowerthebucketandbladetoraiseonetrackoff
ground,asshown.Placeblocksundermachineframeto
support the machine.
2. Slowlyturnvalve(1)counterclockwisetoallowgreaseto
escape from the grease outlet.
3. Inserttwoorthreesteelpipesintothegapsamong
lowerrollers,trackframeandrubbertrackandslowly
rotatethetrackinreversetolifttherubbertrackoffthe
idler.Applyhorizontalforcetoprytherubbertrackoff
theidler.Beforecompletelyremovingtherubbertrack
fromthefrontidler,takeanappropriatemeasureto
prevent the front idler from coming off. Then, remove
therubbertrack.
1
2
GreaseOutlet
M1LA-07-036
M1M7-04-006
M503-07-062
DirectionofRotation
SteelPipes

Hitachi ZAXIS 30U-5N Specifications

General

Brand	Hitachi
Model	ZAXIS 30U-5N
Category	Excavators
Language	English