RJTech 7H Wheelchair User Manual


 
9.3 Inspection
Check ball knob for security.
Check levers for distortion.
Check brazed joints for cracks.
Check pivot shafts for distortion.
Replace pivot bolts if necessary due to excessive wear.
Ensure no oil/grease on brake pad.
9.4 Brake Assembly Removal
Remove the two 1/16 inch Split Pins on the Brake Pivot Shafts to remove the Brake Assembly and
2BA Wave Washers.
9.5 Brake Assembly Fitting
Fit Brake Pivot Shafts through the bushes on the frame. Fit 2BA Wave Washers on each shaft and fit
2 new Split Pins. Retain the Split Pins in the holes by bending the ends apart using small pliers.
Replace with a new return spring if necessary.
Ensure pivot bolts are not over-tightened as this will lead to fracture of brazed tabs to handle. Lubricate
with light oil.
9.6 Brake Adjustment
The Brake Shoe position can be adjusted by loosening the lock nut and repositioning the shoe. The
nuts should be adjusted to allow an operating force at the Brake Knob to be between 10 lbf to 13 lbf
(22 to 58 N) with tyres inflated to correct pressure (50psi/340 Kilopascals).
Section 9 Page 2 of 2