TM 5-3805-293-23-2
0032
FLYWHEEL, FLYWHEEL HOUSING AND GEAR GROUP INSPECT CONTINUED
Gear Group
00032
N OT E
Inspect gears for wear or for damage.
1. Measure backlash between camshaft gear (Figure 33, Item 1) and idler gear (Figure 33, Item 2). Required
backlash 0.0020 in to 0.0055 (0.05 to 0.14 mm).
2. Measure backlash between idler gear (Figure 33, Item 2) and crankshaft gear (Figure 33, Item 4). Required
backlash 0.0020 in to 0.006 (0.05 to 0.15 mm).
3. Measure backlash between fuel injection pump gear (Figure 33, Item 3) and idler gear (Figure 33, Item 2).
Required backlash 0.0020 in to 0.0059 (0.05 to 0.15 mm).
4. Measure end play on idler gear (Figure 33, Item 2).
Figure 33. Gear Inspection and Backlash.
032
END OF TASK
DRIVE BELT INSPECTION, PULLEY AND VIBRATION DAMPER INSPECTION, AND BELT TENSIONER
CHECK
N OT E
Engine is equipped with an automatic belt tensioner. Manual adjustment of belt is not
required.
If new belt is installed, re-inspect belt after 30 minutes of operation.
Drive Belt Inspection
00032
1. Remove drive belt (WP 0093) from machine.
2. Inspect drive belt for stretching, damage, glazing, wear, and for more than four cracks per inch (25.4 mm).
a. Replace drive belt if damaged, cracked, stretched, glazed, or worn (WP 0093).
b. Drive belt OK, proceed to Pulley and Vibration Damper Inspection in this work package.
Change 1