Precautions For Front Attachment And Blade Removal - Hitachi EX27U Operator's Manual

Bucket Cylinder Rod End
Bucket and link connecting pins
--- every 50 hours
PRECAUTIONS FOR FRONT ATTACHMENT
AND BLADE REMOVAL
1. When pins are removed to replace the front attach-
ment or blade, do not attempt to clean the bore in-
sides of the bushings.
2. Before installing the front attachment or the blade,
apply grease sufficiently to the pin-boss ends or the
dust seals of the cylinders.
3. Be sure to install at least one shim on both side of
front joint pins. (Not required when bucket O-ring is
installed.)
4. When the swing post is disassembled, apply a film of
grease to the pins and the thrust plate before
reinstalling them.
MAINTENANCE
7-13
M503-07-092