HOSE AS 3904697 - Caterpillar

2. Attach the base of Tool (A) to the top of the steer pivot housing. Set the dial indicator actuator against the front face of the rear frame.3. Set the dial indicator to zero.4. Place a hydraulic jack under the rear frame at the steer pivot assembly.5. Raise the hydraulic jack and record the reading on the dial indicator.6. On a used machine the total movement should not exceed 1.27 mm (.050 in).7. If the movement is too much, the steer pivot housing should be disassembled. Bushings, bearings and any other worn components should be replaced. With new bearings, bushings and pins the total movement recorded should be .10 to .76 mm (.004 to .030 in).Oscillation Bearing Clearance
Check the oscillation bearing clearance as follows: During assembly, it is recommended that this clearance measurement be made prior to installing the drum into the yoke.1. Put the machine on a hard level surface. Stop the engine, and apply the secondary brake. Remove bearing plate if equipped.2. Disconnect the wire from the brake solenoid on top of the brake/shift valve. 3. Attach the base of Tool (A) to the front face of the steer pivot bearing plate. Set the dial indicator actuator against the front face of the oscillation shaft. Set the dial indicator to zero.4. Release the parking brake on the operator control console. (Parking brake stays engaged when the solenoid wire is disconnected in Step 2.)5. Start and run the engine at high idle.6. Propel the machine in the forward direction against the parking brake. Observe the indicator reading.7. Propel the machine in the reverse direction against the parking brake. Observe the indicator reading sweep. (Movement of the indicator needle from the position in the forward direction to the position of the needle in the reverse direction. Total indicator travel is the indicator sweep.)8. The maximum reading for a used assembly should be .25 mm (.010 in). If the movement is too much, reduce clearance by removing shims from behind the plate. If the clearance is too small, add shims to increase the clearance.9. If the proper clearance cannot be obtained with the removal or addition of shims, the oscillation assembly should be disassembled. Bushings and any other worn components should be replaced. The reading for a new assembly should be .102 mm preload to .051 mm endplay (.004 in preload to .002 in endplay). This is accomplished by first achieving an endplay reading and then removing shims either top or bottom (or both) to achieve a preload.Remove & Install Yoke & Steer Pivot (Earlier)
1. Remove the two bolts and hose guard (2) from the vibratory side of the yoke.2. Remove the two nuts and bolts, and remove hose clamp (1). Move the hose assemblies out of the way. 3. Attach lifting straps and a hoist to rear scraper (3) as shown. Remove the four bolts, and remove the rear scraper from the yoke. The weight of the rear scraper is 82 kg (180 lb). 4. Use a hoist