Miscellaneous; Check And Replace Bucket Teeth - Hitachi ZAXIS 30U-5N Operator's Manual

Hydraulic excavator
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I. Miscellaneous

Check and Replace Bucket Teeth

--- daily
Check bucket teeth (1) for wear and looseness.
Replace teeth (1) if tooth wear exceeds the designated service
limit shown below.
A
Replace
d
CAUTION:
 Guard against injury from flying pieces of metal.
 Wear hard hat or safety glasses, and safety
equipment appropriate to the job.
1. Use hammer (2) and drift (3) to drive out locking pin (5).
Take care not to damage rubber pin lock (4).
2. Check lock pin (5) and rubber pin lock (4). Short locking
pins and damaged rubber pin locks must be replaced
with new ones.
MAINTENANCE
New
Limit of Use
128 (5.0)
65 (2.6)
mm (in)
RIGHT
M104-07-118
Crack on the rubber.
The steel ball may
come out.
7-77
1
4
A
5
Flush one end of the locking
pin to evaluate. In this instance,
the locking pin is too short.
WRONG
4
The steel ball dents
when pushing the
ball.
5
M104-07-056
2
3
M104-07-116
WRONG
M104-07-058
M104-07-059

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