Castle AT-8 OB - Manual (Page 23)

CASTLE, INC AT‐8 OB OWNERS MANUAL V2.1 Page 23 of 32
6 Trouble Shooting Guide Trouble Shooting Guide
6.1 Adjusting the Arm Bearings
Your Assembly Table Arm rides on two sets of bearings; one at the bottom bracket and one at
the upper bracket. If the arm becomes loose or rides on the beam roughly, these bearing sets
may need to be tightened. This procedure is performed best with two people.
1. Loosen the four bolts in the top bracket that hold the arm in place while someone holds
the bottom bracket firmly in place against the table.
UPPER BRACKET ARM
BOLTS
BEARING NUTS
2. Do not loosen the bottom bracket bolts.
3. Locate the bearings attached to the upper brackets that ride on the top of the beam.
Tighten the bolt head on one side of the bearing while holding the not on the other side
of the bearing.
Note: For smooth operation of your Assembly Table Arm, it is important that the bearing
bolts be tightened down firmly.
4. After tightening the bearing nut on the front of the upper bracket, the nut on the rear of
the upper bracket should be tightened next.
5. Do this by holding the nut closest to, and in front of the bracket, while tightening the nut
at the rear of the bracket.