Eager Beaver 20 Ton XPT, Service Manual

Page: 47 / 59

11
C o rrect installation of the speed sensor blocks is extre m e l y
i m p o rtant for proper operation of the AntiLock system.
Use electric welding equipment only to install the blocks.
1. Properly support the trailer axle using jack stands. Be
s u re to provide proper clearance to be able to weld the
sensor block on the axle near the tone (exciter) ring.
2. With the hub in place, locate the sensor mounting
block at the 9 or 3 o’clock position on the axle spindle to
lessen the effect from axle fle x u re due to loading. See
F i g u re 5. Manually hold the sensor block in place and
scribe its location on the axle spindle. See Fig. 6 & 8.
I m p o rtant: the distance of the sensor block from the face
of the tone ring “teeth” must be between .125” to .187”.
See Fig. 8.
3. Remove the hub and bearing assembly and brake
assembly from the axle spindle. Clean all oil or gre a s e
f rom the axle spindle.
4. Install the sensor block on the fix t u re tool and attach
the fix t u re tool to the axle spindle.
5. Adjust the position of the fix t u re tool as necessary to
align the sensor block to the scribed position in Step 2 and
tighten in place.
6. Weld the sensor block to the spindle axle. Weld along
both sides of the block. See Fig. 6.
7. Remove the fix t u re tool and let the sensor block cool.
After cool down, install the sensor spring clip and sensor
as illustrated in Fig. 7.
M
O U N T
S
E N S O R
B
LO C K
I
N
T
H I S
R
A N G E
S
E N S O R
B
LO C K
10 2
11 1
12
9 3
W
E L D
B
E A D
(
A LO N GB OT HS I D E S
)
B
LO C K
B
O R E
S
P E E D
S
E N S O R
M
O U N T I N G
B
LO C K
T
O N EO R
E
XC I T E R
R
I N G
W
H E E L
H
U B
A
X L E
S
E N S O R
B
LO C K
S
P R I N G
C
L I P
S
P R I N G
C
L I P
T
A B
S
P E E D
S
E N S O R
M
O U N T I N G
B
LO C K
W
E L D
B
E A D
. 125”
TO
. 187 ”
E
XC I T E R
R
I N G
H
U B
FIG. 5 FIG. 6
FIG. 7 FIG. 8
WELDING ABS WHEEL SPEED SENSOR BLO C K S
D22/P22 Manual pdf 9/23/97 2:51 PM Page 13