
14 1/2" Closed Mouth Trailer-Mounted Bucking Unit
Section Contents
3.16
Technical Manual
BEST BY FARR
TM
TONG SHIFT
This is a two-way direct acting valve, without proportional control. When the valve is in the middle
(detent) position, the tong is in “neutral”, or not rotating. Pulling the valve handle backward, or toward
the operator, will cause the tong to begin rotating in low gear. Pushing the valve handle forward
through the neutral position will cause the tong to shift to a higher gear, and increase the rotational
speed. Note that maximum torque can only be applied with the tong in the low gear.
BACKUP
This is a two-way direct acting valve, without proportional control. Pushing the valve handle forward will
cause the backup to engage. Pulling backward, towards the operator, reverses the operation.
Setup & Operation
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