Usage:
Remove Track Rollers
1. Lift the machine until the bottom of the track roller frame is at least 38 mm (15 in.) above the floor, and install tooling (A) under the front and rear of the machine.
2. Tighten the track until it is against the track roller.
| NOTICE |
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Do not tighten the track too tight. Damage to the seals in the track adjusting mechanism can be the result. |
3. Remove four bolts (1). Loosen the track. Lower roller (2), and remove it from under the track roller frame with tool (B) and a hoist. 943 track roller weight is 36 kg (80 lb.). 953 track roller weight is 49.5 kg (110 lb.).
Install Track Rollers
| NOTICE |
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Clean all dirt and paint off the contact surfaces of the track roller and track roller frame. Dirt or paint can cause the bolts that hold the track rollers in place to loosen. |
NOTE: The roller placement from the front of the machine is as follows: No. 1 - Single Flange, No. 2 - Double Flange, No. 3 - Single Flange, No. 4 - Single Flange, No. 5 - Double Flange, No. 6 - Single Flange. ROLLERS ARE TO BE INSTALLED ON THE TRACK ROLLER FRAME SO THE OIL LUBE HOLES ARE TOWARD THE OUTSIDE OF THE VEHICLE.
1. Use tool (B) to put the track roller in position on the track. 943 track roller weight is 36 kg (80 lb.). 953 track roller weight is 49.5 kg (110 lb.).
2. Tighten the track until the track roller is against the track roller frame.
3. Install four bolts (1), and tighten to a torque of 305 ± 30 N·m (225 ± 22 lb.ft.).
END BY:
a. adjustment of tracks
Disassemble Track Rollers
START BY:
a. remove track rollers
1. Remove the plug from the end of the shaft. Remove the oil from the roller.
2. Install tooling (A) on roller (3). Put collar (2) under compression until ring (1) can be removed. Remove the ring from the shaft.
3. Remove tooling (A) from the roller. Remove collar (2). Remove the O-ring seal from the shaft.
4. Remove the Duo-Cone seal from the collar and bushing. Put identification on the seals to prevent mixing at assembly.
5. Follow Steps 2 through 4, and remove the ring, collar, O-ring seal, and Duo-Cone seal from the other end of the roller.
6. Remove the six bolts (4) from each side of the roller.
7. Remove the two bushings and shaft (5) from the roller with a press.
NOTE: See Track Roller Specifications in Power Train Specifications.
8. Remove bushing (6) from bushings (8) with a press.
9. Cut pins (7) off even with the bushing. Make the surface of the bushing smooth with a file.
Assemble Track Rollers
1. Put the oil holes in the bushings in alignment. Install bushings (1) in bushings (3) with a press. Drill two 7.54 mm (.297 in.) holes 180° apart 19.05 mm (.75 in.) deep through bushings (1) and into bushings (3). Do not drill the holes through the lubrication grooves on bushings (1). Install two new pins (2) even with the outside face of bushings (1).
Typical Example
2. Install the O-ring seals on the bushings. Put oil on the seals and contact surfaces of the bushings and roller. Install one of the bushings in the roller with tooling (A) and a press. Install the bolts in the bushing.
3. Install the shaft in the roller. Install the other bushing in the roller with tooling (A) and a press. Install the bolts in the bushing.
4. Install indicator group (B), and check the clearance between the shaft and bushings. The clearance must be 0.51 ± 0.23 mm (.020 ± .009 in.).
5. Install the Duo-Cone seals in the bushings and collars with tool (C).
NOTE: The rubber seals and all surfaces that make contact with the seals must be clean and dry. After installation of the seals, put oil on the contact surfaces of the metal seals.
6. Install the O-ring seals on the shaft. Put oil on the seals, and install the collars.
7. Install tooling (D). Put collar (5) under compression. Install ring (4). Install ring on opposite end of roller with same procedure.
8. After installation of the roller, remove plug and install nozzle (E). Fill the roller with oil. Install the plug, and tighten it to a torque of 170 ± 20 N·m (125 ± 15 lb.ft.).