HOSE AS 4751039 - Caterpillar

Service Claim Allowances
This is a 7.5-hour job.
Parts Disposition
Handle the parts in accordance with your Warranty Bulletin on warranty parts handling.
Attach.(1-Rework Procedure)Rework Procedure
Differential Adjustments
The following procedures detail adjustments to the differential which are necessary during assembly.
The bevel gear and pinion are a matched set. If either part is worn or damaged both parts must be replaced with a matched set.
Pinion Depth Adjustment
The pinion depth adjustment procedure is only necessary if the axle carrier or the bevel gear and pinion set is replaced.
Pinion Arrangement(1.) Axle casing (2.) Shim pack (pinion depth adjustment) (3.) Ring nut (4.) Outer bearing (5.) Spacer (6.) Shim pack (pinion pre-load adjustment) (7.) Inner beading (8.) Pinion
Before the pinion assembly is installed into the differential housing, the correct pinion depth must be established. Pinion depth is controlled by the thickness of shim pack (2). The formula used to determine the required shim pack thickness is: (2) = W + X
Pinion Marking
The pinion has EITHER: A figure specific to that pinion marked on the pinion head, OR a nominal figure of 1 1 3.00 marked on the pinion shaft and a plus or minus symbol stamped on the end of the pinion shaft.
Pinion Marking - either on face of pinion (A) or shaft and shaft end face (B) & (C)
'W' is calculated from the marking on the pinion head of shaft.
'X' is determined by a measurement taken on the axle casing (1).
Examples of each of the pinion marking methods are given in the following procedure.
1. If the marking is on the pinion head at (A) it will have 5 digits, 11 2.98 or similar, subtract this from a nominal of 113.00, and record as dimension W. If the marking is on the pinion shaft at (B) it will have 3 digits, 0.02 or similar, if so check the end of the shaft at (C) for the symbol. If stamped with a (+) symbol, record the 3 digit number as negative (-) for dimension W.
If the shaft is marked with a (-) symbol at (C), record the 3 digit number as positive (+) for dimension W.
Depth Gage Set-Up2. Position tooling A on a surface plate. Set the dial indicator gauge to zero. Dial indicator base should be in recess.
Bearings installed with measuring bar and bar capUse the measuring bar and bar cap from tooling B to Install bearings (4) and (7) into the axle housing. Do not install spacer (5) or shim packs at this stage.
Measuring dimension X using tooling B3. Attach remainder of tooling B. Install the dial indicator with the extension point passing through the larger hole in the datum bar. Slide the indicator on the datum bar to sweep the extension point across the INNER bore of the axle casing. Record the LOWEST reading as dimension X.4. Remove tooling B.
Position of shim pack (2)5. Add together dimensions 'W'and 'X' and make up a shim pack (2) of equal thickness. This shim pack will be installed in the position shown with tooling in the following topic,