5 Assembly and Installation
29
Meritor Maintenance Manual MM-15103 (Issued 07-17)
Figure 5.15
6. Insert the long spider pin through the plain case half and the
pinion and thrust washer.
7. Install another pinion and thrust washer in the plain case half.
Insert the long spider pin through the pinion and thrust washer
and into the other side of the plain case half.
8. Locate the holes for installing the short spider pins in the plain
half case. The areas have holes for installing the roll pins above
them. Figure 5.14.
9. Install a thrust washer and pinion in the plain case half. Insert a
short spider pin through the plain case half, thrust washer and
pinion, and into the notch on the long spider pin. Repeat this
process to install the other pinion, thrust washer and short pin.
Figure 5.16.
Figure 5.16
10. From the top, drive the two roll pins through the holes in the
plain half case and short spider pins to secure the short spider
pins in place. Make sure to drive the roll pins in until they are
flush with the case and do not stick out beyond. Figure 5.17.
Figure 5.17
Heat the ring gear before seating it onto the plain case half. Do
not press a cold ring gear on the plain case half. A cold ring
gear will damage the case half because of the tight fit.
11. Expand the ring gear by heating the gear in a tank of water to
160-180°F (71-82°C) for 10 to 15 minutes. The temperature
of the ring gear should not exceed 340°F (170°C) at the web
and 250°F (120°C) at the gear teeth.
Wear safe clothing and gloves for protection from injury when
working with the hot ring gear.
12. Install guide pins to align the ring gear and flange half on the
plain half case.
13. Use a lifting tool to safely lift the ring gear from the tank of
water.
14. Install the ring gear onto the plain case half immediately after
the gear is heated.
앫 If the ring gear does not fit easily on the case half: Heat
the gear again.
Figure 5.15
Figure 5.16
4012300a
PINION
THRUST
WASHER
LONG
SPIDER PIN
4012099a
PINION
THRUST
WASHER
SHORT
SPIDER PIN
Figure 5.17
4012512a
ROLL
PINS
To Next Page
Loading...
