Figure 3-50. Repair and Replacement Standard Points of Measurement for Transmission Reverse Idler Gear and Shaft Assembly

TM 9-2520-246-34

Figure 3-50. Repair and Replacement Standard Points of Measurement for

Transmission Reverse Idler Gear and Shaft Assembly

Table 3-4. Repair and Replacement Standard Points of Measurement for

Transmission Reverse Idler Gear and Shaft Assembly

Ref

Size and Fit

Fig.

Point of Measurement

Wear Limits

Letter

No.

of New Parts

Outside diameter of shaft

3-50

1.010-1.015

.0015

Inside diameter of bearing

3-50

1.0155

(*)

Fit of bearing on shaft

3-50

A-B

.0005L-.0015L

(*)

Outside diameter of bearing

1.5000

3-50

(*)

Inside diameter of gear

1.5005-1.5015

3-50

.007

Fit of bearing in gear

C-D

.0005L-0.0015L

3-50

.010

Thickness of thrust washer

0.091-0.093

3-50

Reverse idler gear to countershaft

3-50

second-reverse gear (backlash)

3-49

0.006-0.012L

.016

Reverse idler gear to mainshaft

3-50

first-reverse gear (backlash)

3-48

0.008L-0.014L

.019

# Replace when bronze is partially or completely worn off.

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