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G P - 5 0 G R A I N P R O C E S S O R
O P E R A T I N G I N S T R U C T I O N S
3.5 Hammer maintenance and replacement
CAUTION:
Before entering hopper to do any service work, raise the hopper following the
instructions on page 27 under the heading “Raising the Hopper Platform”
We recommend the following:
A. Always replace hammers in pairs, 180 degrees apart. ( illustrations A & B below).
B. Tips placed 180 degrees apart should be the same weight.
To replace the hammers on this machine, perform the following steps:
1. Raise the hopper platform following the instructions on page27 under the heading “Raising the Hopper
Platform”.
WARNING:
To prevent serious injury or death, do not tilt platform on unlevel ground or with
material in the tub.
WARNING:
For your protection
ALWAYS
install the hopper cylinder stop on the hoppertilt cylinder
when the hopper is tilted.
NEVER
engage tractor PTO when the hopper is raised.
2. Loosen two bolts at rear of rotor that holds the movable plate in place.
3. Rotate movable plate counter clockwise to align holes allowing hammer rods to be removed through rear
of rotor.
4. Remove one row of hammers and replace, taking note as to where spacers are located. (illustrations A &
B below).
5. After all hammers have been replaced or turned, turn movable plate to lock rods in place and then tighten
bolts.
6. When starting the rotor after installing a new set of hammers or turning corners, watch for unusual or
excessive vibration. If any occurs, immediately shut off the rotor. Check to see what is wrong and
correct it before starting the rotor again.
