Hitachi ZAXIS 135US-5B Operator's Manual page 426

Loosen the Track (ZX225USLC-5B, 225USRLC-5B)
d
CAUTION: The pressure inside the cylinder of the
track adjuster is high. Do not loosen valve (1) quickly
or loosen it too much as valve (1) may fly out or high-
pressure grease in the adjusting cylinder may spout
out. Slowly loosen valve (1) while keeping body parts
and face away from valve (1). Never loosen grease
fitting (2).
IMPORTANT: When gravel or mud is packed between
sprockets and track links, remove it before loosening.
1. To loosen the track, slowly turn valve (1)
counterclockwise using long socket 24; grease will
escape from the grease outlet.
2. Between 1 to 1.5 turns of valve (1) is sufficient to loosen
the track. When valve (1) comes in contact with stop
plate (3), do not loosen valve (1) further.
3. If grease does not drain smoothly, slowly rotate the
raised track.
d
CAUTION: To prevent accidents, care should be taken
to ensure that hands, feet, and any body parts do not
become entangled when working around the tracks.
4. When proper track sag is obtained, turn valve (1)
clockwise to the original condition.
Tightening Torque: 90 N·m (9 kgf·m)
Do not remove valve stop plate (3). Do not loosen bolt (4)
while adjusting the track sag.
d
CAUTION: Consult your authorized dealer if grease is
not sufficiently drained.
OPTIONAL ATTACHMENTS AND DEVICES
3
1
2
Grease Outlet
4
13-6
MDAA-07-013
MDAA-07-014
3
MDAA-07-057