Filter
Top Products
57
SETTINGS AND ADJUSTMENTS
SECTION 4-22
Setting and Adjusting the Chamber Jackscrew
OVERVIEW
Proper adjustment of the two machine-mounted jackscrews is important to performance and safety.
Improper settings can result in premature failure of the jackscrews.
To avoid severe damage to the jackscrews, BE PREPARED TO SHUT THEM DOWN
IMMEDIATELY WHEN THE CHAMBER IS MOTIONLESS FOR ANY REASON WHILE THE
MOTORS ARE RUNNING. This condition can occur when the chamber jams on debris or when the
chamber reaches the end of its stroke, whether on the opened or closed end of the stroke (if the limit
switches are not properly adjusted).
This procedure describes how to check and make adjustments to the cutting chamber jackscrew limit
switches and the mounting bracket limit switch.
TURN OFF AND LOCKOUT the power per OSHA 1910.147 OR ANSI Z244.1-1982 (Lockout/Tag-
out of Energy Sources).
If it is not possible to lock out the power, have an electrician remove the fuses.
Make sure the rotor has come to a complete stop.
The jackscrews, which open the machine, should not operate until the rotor is completely stopped. If you
discover that the jackscrews DO operate while the rotor is still turning, immediately shut down the
machine and call for maintenance to adjust it.
Wear gloves to protect against injury from the rotor or bed knives.
OPEN THE CUTTING CHAMBER INTERLOCK
Disengage the interlock actuator screw with a box wrench or a ratchet
wrench.
Make sure the end of the interlock actuator screw is visible and clear
of any contact.
When disengaged, the interlock opens the electrical control circuit to
the motor and prevents the machine from running.