Useful Information
Procedure for Replacing Worn and Damaged Parts
- To Replace Threaded Adjusting Screws for Models S1 - S20, R1 - R2, P1 - P8, BFC1 - BFC2
- To Replace Threaded Knuckles for Models S11 - S20
- To Replace Gearing Models GBT1 - GBT5
- To Replace Bearings on Models BA1 - BA3, B1 - B3, GBT1 - GBT5, A1 - A3
- To Replace Threaded Adjusting Screws For Models BA1 - BA3, B1 - B3, GBT1 - GBT5
To Replace Threaded Adjusting Screws for Models S1 - S20, R1 - R2, P1 - P8, BFC1 - BFC2
Strip Down
A) Remove handle securing pin using correct diameter punch, wind off handle.
B) Remove shackle pin, wind off left and right hand side frames, (where adjusting screw is damaged it may be necessary to cut away damaged area to allow screw to be removed).
C) Check for wear in other parts of clamp.
Re-assemble
D) Install new adjusting screw winding left and right hand side frames equally on to screw.
E) Replace shackle and shackle bolt, fit new shackle bolt locking nut.
F) Wind on handle and secure with new spring pin.
G) It is advisable that all parts be well lubricated before being put into place.
To Replace Threaded Knuckles for Models S11 - S20
Strip Down
A) Remove handle securing pin using correct diameter punch, wind off handle.
B) Remove knuckle securing pins.
C) Remove knuckle and adjusting screw assembly, wind off old knuckles from adjusting screw.
Re-assemble
D) Wind on new knuckles left and right hand, ensuring both are equally to centre land area of screw.
E) Re-fit onto clamp side frames using securing pins provided.
F) Wind on handle and secure with new spring pin, lubricate with grease.
To Replace Gearing Models GBT1 - GBT5
Strip Down
A) Remove locking nut on front of chain wheel.
B) The chain wheel is held in position by a woodruff key. Draw chain wheel and chain wheel centre from drive shaft.
C) Remove woodruff key from drive shaft.
D) Remove drive shaft from wheel plate. Ensure drive shaft bush is not damaged.
Re-assemble
E) Re-assemble gearing as above in reverse order.
To Replace Bearings on Models BA1 - BA3, B1 - B3, GBT1 - GBT5, A1 - A3
Strip Down
A) Remove wheel and wheel axle from wheel plates.
B) Press out axle from bearing.
C) Remove internal circlip from back of wheel and press out old bearing.
Re-assemble
D) Ensure all components are cleaned thoroughly and press in new bearing.
E) Replace internal circlip.
F) Press wheel axle into bearing (ensuring wheel spins freely on axle).
G) Fit completed assembly back onto wheel plate.
To Replace Threaded Adjusting Screws For Models BA1 - BA3, B1 - B3, GBT1 - GBT5
Strip Down
A) Remove handle securing pin using correct diameter punch, wind off handle and locking collar.
B) Remove shackle pin, wind off left and right hand wheel plates, (it may be necessary to cut away damaged area of adjusting screw to allow screw to be removed).
Re-assemble
C) Fit new adjusting screw winding left and right hand wheel plates equally to centre land area of screw.
D) Replace shackle and shackle pin. Renew shackle pin self locking nut.
E) Wind on locking collar and handle. Secure handle with new spring pin. Lubricate with grease.
Return to Useful Information index