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HD-8 SERIES V
O P E R A T I N G I N S T R U C T I O N S
5.8 Fixed hammer maintenance and replacement
5.8 Fixed hammer maintenance and replacement
5.8 Fixed hammer maintenance and replacement
5.8 Fixed hammer maintenance and replacement
5.8 Fixed hammer maintenance and replacement
CAUTION:
Disengage the driveline clutch. Shut off the engine. Remove the key before working
on the rotor.
IMPORTANT:
The bolts on the hammer tips should be checked periodically for proper torque.
Torque ratings for two bolt tips are given in the hammer tip replacement procedure in this section.
When replacing hammer tips, We recommend the following:
A.
Always replace fixed hammer tips in pairs, 180 degrees apart (same as with the swinging hammers,
illustrations A & B figure 5.10).
B.
Tips placed 180 degrees apart should be the same weight.
C.
When starting the hammermill after installing a new set of tips or after turning the tips to expose new
faces, watch for unusual or excessive vibration. If any is noticed, shut off the hammermill. Determine
the cause and correct it before starting the mill again.
To replace the hammer tips on machines with fixed hammers, perform the following steps:
1.
Be sure to disengage the clutch, wait for rotation to stop, raise the platform and install safety stops, shut
down the engine, and remove the key.
2.
Identify the tips to be removed, then loosen and remove the bolts and tips.
3.
Rotate or replace tips. Use new bolts and lock nuts when replacing tips.
4.
FIXED HAMMER TORQUE SPECIFICATIONS
For two-bolt tips with 5/8” NF grade 8 bolts and
grade 8 lock nut, Torque to 190-210 ft.lbs.
5.
After 2 hours of grinding, retighten the bolts to the same torque values.
6.
Periodically retighten the bolts to the same torque values.
Содержание HD-8 V Series
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