6.
Check travel of the plunger. With the release
handle in the closed position, the edge of
the release lever (
15
) should be a maximum
of 1/2” from the top plate casting rib (see
Figure 4
). If this condition does not exist,
check if the rounded end of the release lever
(
15
) is passing under the guide rib of the
casting, as shown in
Figure 5
.If the rounded
end is hitting the rib, bend the rounded end
of the release lever (
15
) down so that is goes
deeper into the plunder slot. If the release
lever is still greater than 1/2” from the
casting rib, remove the release lever and
bend it as shown in
Figure 6
until it is less
than 1/2” from the casting. If the square
end of the release lever (
15
) and/or end of
the release handle (
16
) is hitting the casting
rub (see
Figure 4
), grind the corner of the
release lever (
15
) and/or the end of the
handle (
16
) until it is clear of the casting rib.
7.
Install the stationary lock (
6
) in the casting
with the large counterbore facing down.
Install the lock nut (
19
) onto the jaw and
tighten until tight, but still allowing the lock
to rotate slightly to ensure alignment with
the kingpin.
8.
Apply grease to spring (
7
) and install it into
the casting. Position it as shown in
Figure 7
.
9.
Coat the lock pin hole in the swinging lock (
6
)
with Never-Seez
®
(supplied with kit).
This is
VITAL. DO NOT USE
any substitute lubricant.
10.
Before installing the swinging lock
(
6
), you must
place the secondary lock (
10
) into its approximate
location in the casting (see
Figure 9
).
11.
Place the swinging lock (
6
) into position
compressing spring (
7
).
Note:
The lock pin
(
5
) has a hole for a grease fitting. Position
the pin so that the hole faces the front of
the casting. Drive the lock pin (
5
) through
the holes in the casting and swinging lock
and secure with cotter pin (
4
). Install the
grease fitting so that it faces to the side and
will be accessible from the left side of the
tractor. (
See Figure 8
).
12.
Turn the fifth wheel upright.
13
.
Check the Primary Lock Operation:
A.
Lock the fifth wheel using a Holland
TF-TLN-5001 (2”) lock tester or Holland
TF-TLN-1500 (3
1
⁄
2
”) lock tester (as appropriate
for the fifth wheel being rebuilt).
B.
Pull the primary release handle (
16
) out,
raise it up and engage the handle lug
with the top plate casting (
see Figure 13
).
C.
Pull the primary release handle (
16
) out
further and install a small piece of 1/4”
stock (not supplied) between the handle
lug and the casting.
D.
Unlock the fifth wheel by removing the
lock tester. When operating properly,
this action will drop the 1/4” stock and
the release handle will drop down and
move to the locked position.
E.
If the 1/4” stock does not drop out, go
back to
Step 6
and bend the release arm
(
15
) slightly in the opposite direction.
F.
Repeat
Step D
, above.
4
Figure 5
Figure 7
Figure 8
SUPPORT HERE
BEND HERE
Figure 6
