Labounty CP 80, Safety, Operation & Maintenance Manual

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CONCRETE PULVERIZERS
Page 6 Section 5 Maintenance
SWIFT-LOCK TOOTH
REPLACEMENT
When the teeth are badly worn or crushing
performance is decreased, the teeth should be
replaced. Depending on the type of concrete being
processed, the interval between teeth changes will
vary. It is recommended that the teeth be replaced
as a set for even wear and the best performance.
Safety equipment should be worn at all times
when maintaining the attachment to prevent
injury. Safety equipment includes eye protection,
hard hat, steel toe shoes, leather gloves, hearing
protection, etc.
1. To change the teeth on the upper jaw, curl the
attachment under and set it down on a fi rm and level
surface with the jaws open (fi gure 5-2). Turn the base
machine off. Make sure that the attachment and
jaws are stable and will not drop or close. Block up if
necessary.
2. Work only on the upper jaw with the pulverizer in
this position (fi gure 5-2). With the teeth facing up,
their weight will be properly supported when the
pins are removed.
Each tooth is very heavy. Removing a tooth pin
when the tooth is not supported will cause the
tooth to fall and could cause serious injury.
3. Use a soft metal drift (such as brass) and a mallet
to drive out the tooth pins (fi gure 5-3).
4. If the tooth is loose on its seat, lift and slide it out.
If necessary, use a pry bar to loosen the tooth from
the seat. Do not lose the retainer ring.
FIGURE 5-2
FIGURE 5-3
TOOTH PIN
TOOTH
RETAINER
RING & SEAT
RECEPTACLE