Some of the parts list items listed in appendix "E" can only be purchased as spare parts kits, e.g.:
- * sealing kit
- * brake repair kit
- * planet carrier complete
- * brake repair kit
Please address your enquiries for the required kits to our spare parts sales department.
REMOVING THE SHAFT NUT FROM THE DRIVE
The shaft nut needs to be removed by drilling it off the spindle and pulling it apart in two halves from the spindle threads. To accomplish this you would do the following:
a. Prepare the drive on a large drill press with shaft nut facing up and the tapered roller bearings facing down.
b. Start drilling one side of the shaft nut close to one of the dowel pins with an approx. 1/2"drill bit. Clean away metal scrap from drilling as you drill to ensure no material gets lost within the drive. Drill down to, but do not hit the tapered roller bearing surface.
c. Drill another hole next to the one you just completed and keep working your way outward until that side is drilled out.
d. Go 180 degrees around the shaft nut and start the process over again near the other dowel pin.
e. Once you complete your drilling use a chisel to open up each side where you completed your drilling.
f. Separate the shaft nut and pull it away from the threads, this may be difficult due to the loctite on the threads.
g. Clean area from all materials and wire brush the threads clean on the spindle.
GFT Brake Repair Instructions
Remove the two motor bolts and the motor.
Secure a fixture*, as shown in the picture, to the drive. The bottom plate of the adjustable center screw compresses the brake back-up plate, until the snap ring is axially unloaded.
Free the snap ring, remove the fixture, and disassemble brake.
The piston releases easily by applying air pressure to the brake release port.
Follow reverse procedures for brake assembly.
*A simpler fixture would be the same crossbar with two additional tapped holes above the exposed area of the back-up plate. Secure the bar to the drive and use two bolts with sufficient length to compress the back-up plate evenly.
Lubricate the piston seals, back-up rings, and their contact areas with gear oil. Assemble back-up rings prior to piston seals.