PREVOST X3-45 Multiplex, Maintenance Manual

Page: 479 / 1422

Section 12: BRAKE AND AIR SYSTEM
PA1562
29
CAUTION
Use only this type of grease on the sensors.
2. Insert spring clip in the holder on hub. Make
sure the spring clip tabs are on the inboard
side of the vehicle. Push in until the clip
stops.
3. Push the sensor completely inside the
spring clip until it is in contact with the tooth
wheel. Ensure mounting is rigid, as it is an
important criterion for adequate sensor
operation.
NOTE
This installation should be of the "press fit"
type.
31.3.4 Spring clip
The spring clip retains the sensor in its mounting
bracket close to the toothed pulse wheel. The
gap between the sensor end and teeth is set
automatically by pushing the sensor in the clip
hard up against the tooth wheel, and the latter
knocks back the sensor to its adjusted position
(Fig. 47).
FIGURE 47: SPRING CLIP
12161
Maintenance
The spring clip requires no specific maintnance.
32. FITTING TIGHTENING TORQUES
45
ο
Flare and Inverted Flare: Tighten assembly
with a wrench until a solid feeling is encoun-
tered. From that point, tighten 1/6 turn (Fig. 48).
FIGURE 48: HOSE FITTINGS
12053
Compression: Tighten nut by hand (Fig. 49).
From that point, tighten using a wrench the
number of turns indicated in the chart hereafter.
Fitting
size
Pipe
diameter
(inches)
Number of additional
turns required following
hand tightening
2 1/8 1 ¼
3 3/16 1 ¼
4 1/4 1 ¼
5 5/16 1 ¾
6 3/8 2 ¼
8 1/2 2 ¼
10 5/8 2 ¼
12 3/4 2 ¼
16 1 2 ¼
FIGURE 49: HOSE FITTING
12054
NTA-Type Plastic Tubing: Hand tighten nut
(Fig. 50). From that point, tighten using a wrench
the number of turns indicated in the following
chart.
Tubing diameter
(inches)
Number of additional turns
required following hand
tightening
1/4 3
3/8 to 1/2 4
5/8 to 3/4 3 ½
FIGURE 50: HOSE FITTING
12055