Wellsaw 1348 - Manual (Page 13)

11
Procedure to check gear backlash on Wellsaw bandsaws.
The applies to saw models with spur type ring & pinion final drive.
- Find the six bolts that hold the Ring Gear to the Bandwheel.
- Using a dial indicator with a magnetic mount, position the indicator so that the
point will contact one of the bolt heads. The indicator must be 90° to the gear (see
illustration).
- The Pinion Gear must be held stationary. This can be done by holding a screwdriver
in the teeth and prying against the saw frame.
- Rock the bandwheel slightly by hand and note the travel on the indicator. See
specifications.
- To adjust the backlash the gearbox must be repositioned. The gearbox mounting
holes are oversized for this purpose. Slightly loosen the bolts that hold the gearbox
to the wheel plate and push the gearbox in the desired direction. Tighten the bolts
and recheck the backlash.
- If you chose to use another method to check the recommended clearance please
note that too much or too little clearance will cause damage to the ring and pinion
gears.
Backlash Specification:
9.5" and 11.5" Ring Gears = .010" to .015"
13.5" Ring Gear = .015" to .020"