STEERING
SYSTEM
O-L
GENERAL
The
steering system on all Jeep Universal vehicles
consists of the steering gear, steering wheel, steering column and shaft, and steering linkage.
This
section covers wheel alignment, steering linkage,
steering gear, steering column and steering wheel.
0-2. Steering
Gear
Function
The
steering gear is a reducing gear. It exchanges a
relatively
large amount of movement with a small force (applied by the driver at the steering wheel), for a much smaller amount of movement with a
greatly increased force through a cam and lever
action type steering gear. The steering gear ratio is 17.9 to 1 on vehicles equipped with the F4
engine
and
19 to 1 with the V6 engine.
0-3. Steering
Linkage
Refer
to Fig. O-l.
The
steering linkage consists of a steering arm at
tached to the steering gear, a steering connecting
rod,
(drag
link),
connecting the steering arm to the
beilcrank,
and a steering tie rod connecting the
beilcrank
to the axle tie rod. The beilcrank pivots
on a pin mounted just to the left of the frame front crossmember. The steering tie rod is connected to
the beilcrank and
extends
to the right
ball
joint as sembly of tie rod. The tie rod
extends
to the wheels,
being connected to their respective steering knuckle
arms
at the wheels.
With
this linkage arrangement,
as the steering arm
moves
rearward,
the front
wheels
turn
to the left. As the steering arm
moves
forward,
the wheels
turn
to the right.
Ball
joints are used to secure the drag
link,
steering
connecting rod and tie rod ends. The
ball
joints
assist in maintaining
good
steering control and con
stant toe-in of the front wheels under all driving conditions. If the
ball
joints
become
worn enough
to allow free motion in the linkage, they should be,
replaced.
Note:
Ball
joint replacement of the tie rod requires
resetting of the wheel toe-in adjustment.
0-4.
Steering
Column
and Gear
Alignment
When
adjusting a steering gear remove all loads
from
the unit by disconnecting the steering con
necting rod (drag
link)
from the steering arm and
also
loosen
the instrument panel bracket and the
steering gear to frame
bolts
to allow the steering
post
to correctly align itself. When retightening the
steering gear to frame
bolts
use a torque wrench
pull
of 45 to 55 lb-ft. [6,2 a 7,6 kg-m.] on the
Vk*
bolts
and 30 to 40 lb-ft. [4,15 a 5,5 kg-m.] on the
Vs"
bolts. 10811
FIG.
0-2—STEERING
GEAR
1—Nut
2
—Lockwasher
3—
Steering
Gear
Arm 4—
Lever
Shaft Oil Seal
5—
Outer
Housing Bushing
6—
Inner
Housing Bushing 7—
Filler
Plug
8—
Cover
and Tube
9—
Ball
Retaining
Ring
10—Cup
11—
Ball
(Steel)
12—
Tube
and Cam
13—
Shims
14—
Upper
Cover
15—
Lockwasher
16—
Bolt
17—
Steering
Wheel 18—
Horn
Button Retainer
19—
Horn
Button
20—
Horn
Button Cap 21— Nut
22—
Spring
23—
Spring
Seat
24—
Bearing
25—
Horn
Cable
26—
Horn
Button Spring
27—
Spring
Cup
28—
Steering Column
29—
Oil
Hole
Cover
30—
Clamp
31—
Adjusting
Screw
32— Nut
33—
Bolt
34—
Side
Cover
35—
Gasket
36—
Shaft
and
Lever
37—
Housing
314
'Jeep'
UNIVERSAL
SERIES SERVICE
MANUAL
O
column assembly down through the floor pan open
ing and out from under vehicle.
0-24.
Disassembly
of
Steering
Gear
Refer
to Fig. 0-2.
When
the steering gear arm is installed on early
production vehicles, the line across the face of the
arm
and the end of the shaft should be in align ment. On later production vehicles, blind splines
on the lever shaft and in the steering gear arm en
sure
correct positioning of the arm.
a.
Remove the steering gear arm with a puller
C-3646.
Caution:
Do not use a hammer or
wedge
to re
move
the steering arm from the shaft and lever.
This
can cause damage to the shaft assembly.
b.
Loosen the lock nut and unscrew the adjusting
screw
two turns.
c.
Remove the side cover screws and washers. Re
move
the side cover and gasket.
d.
Remove lever shaft.
e.
Remove upper cover plate screws. Remove cam,
wheel tube, and bearing assembly from the housing.
f.
Clean
all parts with suitable cleaning solvent and wipe dry.
g.
After dismantling as outlined above is com
pleted, inspect cam
grooves
for wear, chipping and
scoring,
also the
ball
races on the cam ends and the
separate
ball
cups. Existence of any of
these
condi tions indicates the necessity for parts replacement.
h.
Inspect the tapered stud mounted on the lever
shaft for flat
spots
and chipping. In the case of
either, replacement is usually advisable. Inspect the
lever shaft for wear and
test
the fit of the shaft in
the bushings.
i.
Inspect condition of the oil seal at outer end of
lever shaft and the bearing at top end of steering
column.
0-25.
Reassembly
of
Steering
Gear
e Refer to Fig. 0-2.
Reassemble all parts to wheel tube in reverse order
of dismantling. Assemble cam, wheel tube and
bearing
assembly in housing, seating the lower
bearing
ball
cup in the housing.
Note:
New plastic retainer type cam bearings are
now available for the Ross steering gears. The new
bearings replace, and are interchangeable with,
the lock ring type cam bearings on gears equipped
with
early type cams.
With
adjusting shims in place, assemble upper
cover and adjust the cam bearings.
Assemble lever shaft in housing and with gasket
in
place assemble the side cover and set adjusting
screw
for a minimum backlash of the studs in the
cam
groove, with the steering gear at the center
point of travel.
When
assembling upper bearing spring and spring
seat in jacket tube make sure that the spring seat
is positioned correctly. It must be installed with
the lengthwise flange down against the bearing and
not up inside of spring coil.
0-26.
Installation
of
Steering
Gear
a.
After the gear has been properly adjusted, as
outlined in Par. 0-5, install steering gear assembly
in
chassis in the reverse order in which it was re
moved.
b.
After installing the assembly in the vehicle,
jack
up front of vehicle and place the front wheels
in
the straight ahead position.
c.
Temporarily install the steering wheel to locate
the mid-position of the steering gear. To locate the mid-position,
turn
the steering wheel as far to the
right
as possible and then
turn
in the
opposite
di
rection
as far as possible, noting the total number
of turns.
Turn
the wheel back just ^ of the total movement to place the gear in mid-position.
d.
With
the steering gear in mid-position and the
wheels in the straight ahead position install steer ing gear arm on lever shaft with the
ball
end down.
When
installed the line across the face of the arm
and
end of shaft should be in alignment.
0-27.
Steering
Wheel
Installation
•
Refer to Fig. 0-2.
a.
Install
steering wheel and spring on shaft.
Align
scribe marks on shaft and hub of wheel.
b.
Install
steering shaft nut and torque 20 to 25
lb-ft. [2,8 a 3,4 kg-m.].
c.
Install
horn cap. Test horn.
321
p
BRAKES
PIG.
P-8—TRANSMISSION
BRAKE
ADJUSTMENT
1—
Bail
Nut
2— s,6"
12,38 mm.I
Clearance
3—
Adjusting
Screw
d.
Rotate the
drum
until
one pair of holes in the
drum
are opposite the two adjusting screw wheels
in
the brakes. Use the
edge
of the holes as a
fulcrum
and
with
a suitable
tool
or screwdriver for
adjusting,
rotate the adjusting screw wheels,
mov
ing
the handle of the
tool
away
from
the
drum
until
the
shoes
are snug in the
drum.
e.
Examine the brake operating cable to be
sure
that
it is not
worn
or damaged. Free it up thorough
ly
and lubricate
it.
Make
sure
the operating handle
on
the instrument panel is
fully
released.
Adjust
the clevis on the brake end of the operating cable
until
the clevis pin
will
just go through the hole
in
the clevis and brake operating lever
without
slack
in the cable.
Tighten
the clevis
lock
nut.
f.
After
the cable is connected back off seven
notches on each adjusting screw wheel
which
will
give
the proper
running
clearance between the
lining
and the
drum.
g.
Reconnect the propeller shaft.
Install
retracting
spring
clip,
clevis pin and the cotter pin, also, in
stall
the retracting spring
link
and spring.
h. The
position
of the brake operating lever, Fig.
P-8, must be correctly set. The
position
of this
lever
is determined by the adjustment of the cam or
brake operating
link,
which
spreads
the two
shoes.
The
operating
link
is adjusted by
means
of the
special
ball
nut to set the operating lever
with
[2,38
mm.] clearance between the closest
point
of
the lever and the brake backing plate.
i.
The
position
of
this
lever should be checked when
making
a major adjustment or when
relining
the
brakes and
if
found
incorrect readjust it to give this
clearance before adjusting the brake cable
clevis.
P-14.
Self-Adjusting
Wheel
Brake
Units
Self-adjusting
brakes are standard equipment on
all
late production
'Jeep'
vehicles.
The
wheel brake units consist of a support plate,
two
brake
shoes,
brake
shoe
return springs, self-
adjusting
operating parts, and a wheel
cylinder.
The
automatic adjuster continuously maintains
correct
operating clearance between the brake
lin
ings
and the drums by adjusting the brakes
in
small
increments in direct
proportion
to
lining
wear. This
continuous
adjustment prevents gradual increase
in
the brake pedal
travel
as the
linings
wear. The
adjuster, therefore,
adds
the safety feature of
main
taining
adequate
pedal reserve
during
the service
life
of the
lining.
After
the
lining
wears enough to require adjustment, the adjusting cable or
link
will lift
the lever
into
engagement
with
the next
tooth
of the
star
wheel
when the brake is applied. When the brake
is
released, the
shoes
return to the anchor. The
self-adjuster
utilizes
the movement of the brake
shoes
in a brake application to
actuate
the adjuster
lever.
This
action
will
repeat
on
subsequent
brake applica
tions,
if
necessary,
until
the
shoe
to
lining
clearance
is
reduced to a
point
where the
shoe
movement
is
not enough to
cause
the cable to
lift
the lever
to
the next
tooth.
The
adjusting lever, adjusting screw assembly,
linkage
rods and lever crank parts are
left
hand
or
right
hand parts, NOT interchangeable, and
MUST
be kept
separated.
The
automatic adjuster on the brake system con
sists
of an adjusting screw assembly, adjusting
lever,
two adjusting
links,
and a lever crank, (Fig.
P-10).
Note:
It is not
necessary
to remove the rear axle
shaft hubs to
perform
minor
brake service.
When
replacement of
oil
seals
is also required, hubs must be removed.
On
vehicles equipped
with
self-adjusting brake
assemblies, self-adjustment of the
front
wheel brakes
takes
place
during
reverse wheel brake ap
plication
and the rear wheel brake adjustment
takes
place
during
forward
vehicle brake application.
P-15.
Relining
Wheel
Brakes
a.
When
necessary
to reline the brakes, the vehicle
should
be raised so that all
four
wheels are free.
b.
Turn
the brake
shoe
star
adjustment all the
way
in. Refer to Fig. P-12.
c.
Remove the wheels, hubs and drums,
which
will
give
access
to the brake
shoes
(Fig.
P-10, P-11).
d.
Install
Wheel
Cylinder
Clamps C-416 to re
tain
the wheel
cylinder
pistons in place and prevent leakage of brake
fluid
while
replacing the
shoes.
P-16.
Brake
Shoe
Removal
•
Removing the Front Brake
Shoes.
•
Refer to Fig. P-10.
a.
Using
Tool
C-3785
or equivalent remove the
upper linkage rod and brake
shoe
return springs.
b.
Remove the brake
shoe
retainer, spring and pins.
c. Remove the anchor pin plate.
d.
Remove the
primary
and secondary brake
shoe
assembly
from
the support.
e.
Overlap the anchor
ends
of the
primary
and
secondary brake
shoes
and remove the adjusting
screw, adjuster lever,
lower
return spring, and
linkage
rods. 328
'Jeep'
UNIVERSAL SERIES SERVICE
MANUAL
u
MISCEIiLaNEOUS
Contents
SUBJECT
PAR.
Abbreviations
U-15
Extra
Equipment U-2
Front
Bumper Weight U-9
Governor
U-3
Governor
Adjustment U-4
Governor
Maintenance. U-6
U-1. GENERAL
Miscellaneous information included in this sectioi
includes coverage of extra equipment, special
tools,
torque specifications, and charts and tables.
U-2. EXTRA
EQUIPMENT
Much
of the utility of the
*
Jeep*
Universal
is due to
the extra equipment which has been designed to adapt it for farming and industry. The mainte
nance and use of
some
of this equipment is out
lined
in this section.
U-3.
Governor Assembly
The
Novi governor is supplied for models equipped
with
the F4 engine.
This
is a centrifugal type governor and is illustrated in Fig. U-2. Complete
installation
instructions are supplied with each
assembly. Adjustment and operating procedures
are
given below.
U-4.
Governor Adjustment
a.
Adjust the carburetor to obtain smooth
engine
idle at 600 rpm., then
stop
the engine.
b.
Check
throttle linkage to ensure maximum
throttle opening. Be certain that throttle and
governor linkage is free.
c.
Place the carburetor throttle in wide-open posi tion and
pull
the governor control handle out to
the last notch. Adjust the governor to bellcrank
rod
so that the linkage
will
hold the carburetor
throttle in wide-open position.
d.
Close the governor control and start the
engine
Again
pull
the control out to the last notch and
adjust
the length of the cable at adjusting yoke so
that the
engine
will
run at
2600
rpm. Close the
control
to recheck the linkage for free action and
to make sure the
engine
will
return to 600 rpm.
idle speed.
If
the
engine
runs faster than this speed,
loosen
the lock nut which locks the governor hand control
handle on the dash to the rod and back off the
handle until the carburetor idle speed adjusting
screw
bears on the stop. Tighten the lock nut.
In
the absence of electrical tachometer equipment,
engine
speed may be determined by the speedom
eter. Safely
jack
up the
rear
wheels and be sure the front wheel drive is not
engaged.
When driving
the
rear
wheels in high or direct transmission gear,
the
speedometer
will
read from 13j^ to 15 mph. [21.6 to 24.0 kph.] at an
engine
speed of from 900
to 1000 rpm.
SUBJECT
PAR.
Heater
U-10 Miscellaneous Data U-16
Pintle
Hook 1X7
Special
Tools. U-ll
Torque
Specifications U-13, 14, 15
Standard
and Recommended Tools
j.
.U-12
U-5.
Novi Governor Operation /
The
Novi governor is directly belted to the F4
engine
as no clutch is provided to disconnect the
drive.
To
operate the vehicle
WITHOUT
governor con
trol,
push the governor hand control all the way
IN
against the instrument panel.
To
operate the vehicle
WITH
governor control,
pull
the governor hand control handle out. The
hand
control has nine notched positions. Pulling the
control
out to the first notch
sets
the controlled
engine
speed at approximately 1000 rpm. and each successive notch increases the speed 200 rpm.
until
2600
rpm. is reached in the ninth notch. The
hand
control may be released by turning the han dle one-quarter
turn
in either direction.
When
the
engine
is being operated under governor
control
(hand control out) the controlled
engine
speed may be
exceeded
at any time by depressing
the
foot
accelerator in the conventional manner to
secure a greater carburetor throttle opening than
that determined by the governor hand control
setting.
U-6.
Governor Maintenance
The
belt tension may be adjusted by raising or
lowering the governor in the slotted
holes
in the mounting bracket. Keep the pulleys and belt free
of
dirt
and oil. Belt slippage
will
affect governor
operation and a tight belt may cause
rapid
wear
of the governor shaft and bearings. Adjust it to
allow Yi' [12,7 mm.] depression midway
between
the pulleys with thumb pressure.
There
is little wear of the internal parts for they
operate in oil. The governor housings are equipped
with
both
fill
and
drain
plugs and also with level
indicating
plugs.
Check
the oil level at each vehicle
lubrication
and change the oil each time the en
gine
oil is changed using the same grade oil used
in
the engine.
Caution:
Do not
fill
the governor housing above
the level plug. Overfilling
will
prevent governor
control
and possibly cause damage to governor in
ternal
parts. The capacity of
these
governors is two fluid ounces [59,15 cm3]. The filler plug is
also a vent which should be cleaned thoroughly at
each oil change to be sure that the vent operates.
U-7.
Pintle Hook
The
standard type pintle hook, Fig. U-1, affords a
safe, easy hitch for towing a
trailer
or other vehicle. 357
u
MISCELLANEOUS
Designed primarily for use on the road, a safety
latch
locks the hook in the closed position and two
eye
bolts
are provided for attachment of safety chains which should be crossed when installed, to
prevent the hooks from jumping out of the
eyes.
Keep
the attaching
bolts
tight at all times. When
lubricating
the vehicle, place a few drops of oil on the hook and safety latch pivot pins.
FIG.
U-l—PINTLE HOOK
U-8.
Pintle Hook Installation
Six
holes
are provided in the frame
rear
cross mem
bers of 'Jeep* Universals for the installation of
pintle hooks and safety chain eye bolts. On most vehicles, the pintle hook is attached using the top
four
holes
and the eye
bolts
are attached using the
lower two holes. On 'Jeep* Universals equipped
with
tail
gates,
the position of the hook and the eye must be changed to provide proper clearance.
On
these
vehicles, use the lower four
holes
for attaching the pintle hook and the upper two
holes
for
attaching the safety chain eye bolts.
U-9.
Front
Bumper
Weight
The
best
performance of a four-wheel drive vehicle
is obtained when the load is equally distributed for
traction
on the front and
rear
wheels.
This
weight
distribution is disturbed when the vehicle is used
for drawbar work as the load on the
rear
wheels is increased and that on the front wheels decreased.
The
addition of a 265 pound front bumper weight
equalizes the load.
When
the load is equalized the front and
rear
axles
do approximately the same work which results in
prolonged life of
these
parts and considerably more
satisfactory performance.
The
bumper weight, Fig. U-3, is held in place by
four
bolts
and is provided with hand
holes
for lift
ing.
Do not add sand
bags
or other
weights
in the vehicle. When driving over rough
terrain,
with the
weight in place, the driver should exercise due care.
FIG.
U-2—NOVI
GOVERNOR
— F4 ENGINE
1—
Pivot
Bolt
2—
Cotter
Pin
3—
Governor
Beilcrank
4—
Adjusting
Block
5—
Governor
Control
6—
Screw
7—
Control
Bezel
8—
Handle
9—
Vertical
Rod
10—Washer
11
—Nut
12— Nut
and
Lockwasher
13—
Stud
14—
Washer
15—
Screw
16—
Support
Bracket
17—
Fan
Drive
Pulley
18—
Governor
Drive
Belt
19—
Governor
(Novi)
20—
Governor
Drive
Pulley
21—
Horizontal
Rod
22—
Beilcrank
Bracket
23—
Washer
358