Harley Davidson 2018 softail models. Service manual — page 5
1. Raise front wheel. See Secure the Motorcycle for
Service.
2. Check wheel bearing end play. See Prepare.
3. Remove front brake caliper(s). See Prepare.
NOTE
Do not operate front brake lever with the front brake
caliper removed. Without the rotor, brake pressure
forces the pistons out of the piston bores. Seating
pistons requires caliper disassembly.
1.
See Front Axle Pinch Bolt. Remove front wheel.
NOTE
ABS models: Never pull wheel speed sensor
cable taut or use to retain wheel, axle or other
components.
Keep wheel speed sensor and ABS encoder
bearing away from magnetic fields.
a. Loosen pinch bolt (2 or 3) depending on model.
NOTE
FXFB model has the pinch bolt (3) coming in from
the other side.
b. See Cast Front Wheel (Typical) or Laced Front
Wheel. Remove front axle (1), left bearing spacer
(10) or wheel speed sensor (7) and right bearing
spacer (2).
c. Remove front wheel (5).
NOTE
If equipped with a hub cap, the hub cap will come
off with the wheel.
Consumables
Description
Part Number
Size
LOCTITE SILVER GRADE ANTI-
11100001
20.7 ml (0.7 fl oz)
SEIZE
1.
See Cast Front Wheel (Typical)or Laced Front Wheel.
Install front wheel.
a.
Apply a light coat of ANTI-SEIZE LUBRICANT to front
axle (1), wheel bearing bores and bore of the inner
wheel bearing spacer (4).
LOCTITE SILVER GRADE ANTI-SEIZE (11100001)
b.
Position front wheel (5) between front forks.
c.
See Cast Front Wheel (Typical) or Laced Front
Wheel. Install front axle through right fork, right
bearing spacer (2), front wheel, left bearing spacer
(10) or wheel speed sensor (7).
NOTE
See Front Wheel Speed Sensor Index Pin
(ABS equipped). Position wheel speed sensor
(1) with index pin (2) contacting fork.
NOTE
Models with a hub cap assembly (11) will not
have a right bearing spacer (2), use hub cap
assembly in place of right bearing spacer.
d.
Thread the front axle into the left fork. Tighten.
Torque: 74-107 N·m (55-79 ft-lbs) Front wheel axle
2.
See Front Axle Pinch Bolt. Tighten pinch bolt.
a. Bottom mount pinch bolt:
Torque: 15-20 N·m (11-15 ft-lbs) Front fork bottom
mount pinch bolt
b. Side mount pinch bolt:
Torque: 28-34 N·m (21-25 ft-lbs) Front fork side
mount pinch bolt
1
Front axle
2
Front axle pinch bolt, bottom mount
3
Front axle pinch bolt, side mount
Figure 1. Front Axle Pinch Bolt
1
Wheel speed sensor
2
Wheel speed sensor index pin
Figure 2. Front Wheel Speed Sensor Index Pin (ABS equipped)
1. See Laced Front Wheel. Disassemble hub cap assembly
if equipped.
a. Remove and discard retaining ring from hub cap
assembly (11).
b. Remove hub spacer from hub cap.
2. See Cast Front Wheel (Typical) or Laced Front Wheel.
Remove front brake disc(s).
a. Remove and discard screws (9).
b. Remove front brake disc(s) (8).
3. Remove front tire. See General.
4. Remove valve stem. See General.
5. Remove and discard sealed wheel bearings. See
Prepare.
6. See Cast Front Wheel (Typical) or Laced Front Wheel.
Remove wheel bearing inner spacer (4).
7. See Laced Front Wheel. FXBB: Remove screws (13)
and hub cap (12).
1. Clean all parts thoroughly.
2. Inspect front wheel for damage. Replace or repair as
necessary.
3. Check wheel lateral and radial runout before installing a
new tire. See General.
1.
Install new valve stem. See General.
2.
Install tire. See General.
3.
See Cast Front Wheel (Typical) or Laced Front Wheel.
Install wheel bearing inner spacer (4).
4.
Install new wheel bearings. See Prepare.
5.
See Laced Front Wheel. FXBB: Install hub cap.
a. Align holes on hubcap (12) with holes on the right
side of front wheel.
b. Install screws (13). Tighten.
Torque: 22-33 N·m (16-24 ft-lbs) FXBB: Hub cap
screw
NOTICE
Do not re-use brake disc/rotor screws. Re-using
these screws can result in torque loss and damage
to brake components. (00319c)
6.
See Cast Front Wheel (Typical) or Laced Front Wheel.
Install front brake disc(s).
a. Align front brake disc(s) (8) with mounting holes in
front wheel (5).
b. Install new screws (9). Tighten.
Torque: 22-33 N·m (16-24 ft-lbs) Front brake disc
screw
1
Front axle
2
Right bearing spacer
3
Wheel bearing (2)
4
Inner wheel bearing spacer
5
Wheel
6
Wheel bearing (ABS encoder)
7
Wheel speed sensor (ABS)
8
Brake disc
9
Brake disc screw (5)
10
Left bearing spacer
Figure 1. Cast Front Wheel (Typical)
1
Front axle
2
Right bearing spacer
3
Wheel bearing (2)
4
Inner wheel bearing spacer
5
Wheel
6
Wheel bearing (ABS encoder)
7
Wheel speed sensor (ABS)
8
Brake disc
9
Brake disc screw (5)
10
Left bearing spacer
11
Hub spacer, hub cap and retaining ring
12
Hub cap (FXBB)
13
Screw (5)
Figure 2. Laced Front Wheel
1. Install caliper(s). See Prepare
2. Lower front wheel. See Secure the Motorcycle for
Service.
1. Remove main fuse. See Main Fuse.
2. Remove saddlebags, if equipped. See Remove and
Install: Standard.
3. Measure wheel alignment. See Prepare.
4. Remove belt guards, if necessary. See Prepare.
5. Remove muffler, if necessary. See Prepare.
6. Raise rear wheel. See Secure the Motorcycle for
Service.
7. Check wheel bearing end play. See Prepare.
8.
NOTE
Do not operate rear brake pedal with the rear brake
caliper removed. Without the rotor, brake pressure
forces the pistons out of the piston bores. Seating
pistons requires caliper disassembly.
Remove rear brake caliper. See Prepare.
Special Tools
Description
Part Number
Qty.
AXLE NUT TORQUE ADAPTER
HD-47925
1
1. See Rear Wheel. Remove rear wheel.
a. Remove E-clip (13).
b. Loosen axle nut (12) using axle nut torque adapter. Special
Tool: AXLE NUT TORQUE ADAPTER (HD-47925)
c. Loosen axle adjuster screws (10) and slide rear wheel
forward.
d. Remove axle nut and washer (11).
e. Support brake caliper bracket (2).
f. Remove rear axle (9), right outer spacer (1), right inner
spacer (3) or wheel speed sensor (4) and left spacer (6).
g. Remove drive belt from rear sprocket (8).
h. Remove rear wheel assembly.
Special Tools
Description
Part Number
Qty.
AXLE NUT TORQUE ADAPTER
HD-47925
1
Consumables
Description
Part Number
Size
LOCTITE SILVER GRADE ANTI-
11100001
20.7 ml (0.7 fl oz)
SEIZE
1. See Figure 1. Install rear wheel.
a. Apply a light coat of anti-seize lubricant to rear axle
(9), wheel bearing bores, and bore of wheel bearing
spacer (16).
LOCTITE SILVER GRADE ANTI-SEIZE (11100001)
b. Position rear wheel between rear fork.
c. Install rear axle through left spacer (6), left leg of rear
fork, and rear sprocket (8).
d. Install rear axle through rear wheel.
e. Install rear axle through right inner spacer (3) or WSS
(Wheel speed sensor) (4), caliper bracket (2), right
outer spacer (1) and right leg of rear fork.
f. Install washer (11) and axle nut (12). Hand-tighten.
g. Slide rear axle forward. Install drive belt on front and
rear sprockets.
2. See Figure 2. Rotate WSS to position shown, if equipped.
Verify wire harness is routed correctly.
3. Align rear wheel. See Prepare.
4. Adjust drive belt deflection. See Inspect.
5. Verify drive belt tracking properly.
6.
NOTE
See Figure 3. To tighten rear axle nut without
removing exhaust, use AXLE NUT TORQUE
ADAPTER (Part Number:HD-47925).
See Figure 1. Tighten rear axle nut.
Torque: 129-142 N·m (95-105 ft-lbs) Rear axle nut
7. Install E-clip (13).
1
Right outer spacer
2
Brake caliper bracket
3
Right inner spacer, non ABS
4
WSS
5
Brake disk (typical)
6
Left spacer
7
Sprocket screw (5)
8
Rear sprocket
9
Rear axle
10
Adjuster screw (2)
11
Washer
12
Axle nut
13
E-clip
14
Wheel bearing (2)
15
Brake disk screw (5)
16
Wheel bearing spacer
Figure 1. Rear Wheel
1
Clip
2
Clamp
3
Connector
Figure 2. Rear Wheel Speed Sensor Orientation
1
Torque wrench
2
Axle nut torque adapter (HD-47925)
Figure 3. Install Tool Perpendicular to Torque Wrench
1. See Rear Wheel. Remove rear brake disc.
a. Discard brake disk screws (15).
b. Remove rear brake disc (5).
2. Remove rear sprocket.
a. Discard rear sprocket screws (7)
b. Remove rear sprocket (8).
3. Remove rear tire. See General.
4. Remove valve stem. See General.
5. If necessary, remove and discard sealed wheel bearings. See Prepare.
1. Clean all parts thoroughly.
2. Inspect rear wheel for damage. Replace or repair as necessary.
3. Check wheel runout. See General.
1.
Install new valve stem. See General.
2.
Install tire. See General.
3.
Install wheel bearing spacer (16), if removed.
4.
See Rear Wheel. Install new sealed wheel bearings (14),
if removed. See Prepare.
NOTICE
Do not re-use sprocket mounting screws. Re-using
sprocket mounting screws can result in torque loss
and damage to the sprocket and/or belt assembly.
(00480b)
5.
Install rear sprocket.
a. Align rear sprocket (8) with mounting holes in rear
wheel.
b. Install new sprocket screws (7). Tighten using the
following sequence.
c. Tighten screws to initial torque.
Torque: 81.3 N·m (60 ft-lbs) Rear sprocket screws,
first torque
d. Back off screws one-half turn (180 degrees).
e. Tighten screws to final torque.
Torque: 104.4-112.5 N·m (77-83 ft-lbs) Rear
sprocket screws, final torque
NOTICE
Do not re-use brake disc/rotor screws. Re-using
these screws can result in torque loss and damage
to brake components. (00319c)
6.
Install rear brake disc.
a. Align rear brake disc (5) with mounting holes in rear
wheel.
b. Install new brake disk screws (15). Tighten
Torque: 40.7-61 N·m (30-45 ft-lbs) Rear brake disc
screws
1. Lower rear wheel. See Secure the Motorcycle for
Service.
2. Install muffler, if removed. See Prepare.
3. Install belt guards, if removed. See Prepare.
4. Install saddlebags, if removed. See Remove and Install:
Standard.
5. Install main fuse. See Main Fuse.
NOTE
See Figure 1. The following procedure is valid for wheels that use an angle flange hub regardless of rim style or
diameter.
Disc mounting surface for primary brake side of hub has one or two grooves.
1
Outer spoke hole
2
Inner spoke hole
Figure 1. Angle Flange Hub
1. Place hub on workbench:
a. Front: primary brake side up.
b. Rear: brake side down.
2. Install all spokes in the lower flange.
3. See Figure 2. Flip hub over. Gather all outer spokes and hold upright with a rubber band. Repeat with the inner
spokes using a second rubber band.
4. Install spokes in remaining flange.
5. Rotate the lower flange spokes as far as they go:
a. Outer spokes clockwise.
b. Inner spokes counterclockwise.
6. Center the rim over the hub and spokes assembly and support on wooden blocks approximately 38.1 mm (1.5 in)
thick.
a. If valve is not located in the center of the rim, place valve hole facing up.
b. If the valve is located in the center of the rim, it can be placed either side up.
NOTE
Install nipples until approximately 3.2 mm (⅛ in) of spoke thread shows.
1
Outer spoke
2
Inner spoke
Figure 2. Spokes Gathered
7. Install lower flange outer spokes and loosely install spoke nipples:
a. Rim with side valve hole: See Figure 3. Start at the valve stem hole (1).
b. Rim with center valve hole: See Figure 4. Start at the first hole counterclockwise (1) from valve stem
hole.
8. Install remaining outer spokes in every fourth hole.
9. Install lower flange inner spokes and loosely install spoke nipples:
a. Starting at the second hole counterclockwise (2) from first spoke installed, install inner spoke.
b. Install remaining inner spokes in every fourth hole.
10. Carefully release upper flange inner spokes and fan out around rim, rotating them clockwise.
11. Starting at the first hole counterclockwise (3) from first spoke installed, install inner spoke. Install remaining inner
spokes in every fourth hole.
12. Carefully release upper flange outer spokes and fan out around rim, rotating them counterclockwise.
13. Install outer spokes in remaining holes (4).
14. Verify that spoke heads are seated. See General.
a. Evenly hand-tighten spoke nipples until snug.
b. Only tighten until slack is removed.
c. Proper torque is applied when the wheel is trued.
d. Adjust offset and true the wheel.
Figure 3. Side Valve Rim
Figure 4. Center Valve Rim
Check wheels for lateral and radial runout before installing a new tire, tube or rim seal. Checking cast or laced wheels is
performed using the same procedure.
Laced wheels having excess runout can be trued. However, cast wheels must be replaced. Never attempt to straighten
cast wheels.
Always check condition of the wheel bearings before checking or adjusting wheel runout. See Prepare.
Special Tools
Description
Part Number
Qty.
WHEEL TRUING STAND
HD-99500-80
1
Check wheels for both radial runout and lateral runout. If either measurement is not within specification:
Cast wheel: Replace the wheel.
Laced wheel: Adjust spokes to true the wheel. See steps in this section.
Checking Radial Runout
1. See Figure 1. Mount wheel in WHEEL TRUING STAND (Part Number:HD-99500-80).
2. Adjust gauge rod or dial indicator to the rim's tire bead safety hump.
3. Rotate wheel and measure distance at several locations. Runout must not exceed 0.76 mm (0.030 in).
1
Wheel truing and balancing stand
2
Radial runout
3
Gauge rod
4
Bead safety hump
Figure 1. Checking Radial Runout
Checking Lateral Runout
1. See Figure 2. Mount wheel in WHEEL TRUING STAND (Part Number:HD-99500-80).
NOTE
Dial indicators are more accurate than gauge rods.
2. Place a gauge rod near, or dial indicator on the rim bead flange.
3. Measure distance at several locations. Lateral runout must not exceed 0.76 mm (0.030 in).
1
Wheel truing and balancing stand
2
Lateral runout
3
Gauge rod
Figure 2. Checking Lateral Runout
Special Tools
Description
Part Number
Qty.
SPOKE WRENCH
HD-94681-80
1
WHEEL TRUING STAND
HD-99500-80
1
1. See Figure 1. Prepare rim.
a. Place a piece of tape to mark the center of each group of four spokes as shown.
b. Mark groups directly opposite one another and approximately 90 degrees apart.
c. Use different colors of tape or number each group.
Figure 1. Marking Spoke Groups
2. See Figure 2. Mount wheel in WHEEL TRUING STAND (Part Number:HD-99500-80) so hub turns freely on its
bearings.
NOTE
Disc mounting surface for primary brake side of hub has one or two grooves.
3. Measure offset.
a. Lay a straightedge across the primary brake disc mounting surface and one of the marked spoke groups.
b. See Figure 3. Measure the distance from the straightedge to the location shown to determine distance A.
c. Compare to dimensions in Table 1.
NOTE
Always loosen the appropriate spokes before tightening the other two. Reversing this procedure causes the rim to
become out-of-round. For example: If the right side is less than specification, loosen the two spokes on the hub
right side. Then tighten the two spokes attached to the hub left side.
Tighten or loosen spokes one flat at a time and recheck measurement.
Always work on groups that are opposite each other to maintain radial runout.
4. If the dimension is not correct, adjust the four spokes using SPOKE WRENCH (Part Number:HD-94681-80). Turn
all four spokes an equal number of turns until offset is at specification.
5. Repeat the previous step for all groups on the wheel.
6. Check wheel runout. See True Laced Wheels.
Figure 2. Checking Wheel Hub Offset Dimension (Typical)
Table 1. Laced Wheel Offset Dimensions
MODEL
SIZE
WHEEL
IN
MM
FLDE, FLSL, FLHC, FLHCS
16 x 3
Front
1.267-1.297
32.18-32.94
FXBB
19 x 2.5
Front
1.258-1.288
31.95-32.72
FLDE, FLSL, FXBB, FLHC, FLHCS
16 x 3
Rear
1.387-1.417
35.23-35.99
Figure 3. Laced Wheel Hub Offset Dimensions
Special Tools
Description
Part Number
Qty.
SPOKE TORQUE WRENCH
HD-48985
1
SPOKE WRENCH
HD-94681-80
1
WHEEL TRUING STAND
HD-99500-80
1
NOTE
Dial indicators are more accurate than gauge rods.
Perform radial truing before lateral truing.
Adjust Radial Runout
1. See Figure 1. Mount wheel in WHEEL TRUING STAND (Part Number:HD-99500-80).
2. Adjust the gauge rod (3) near to the tire bead safety hump (4). If using a dial indicator, place the tip on the
safety bead hump.
3. Straight flange hub: Seat each spoke head in the hub flange using a flat nose punch and mallet.
NOTE
Always loosen the appropriate spokes before tightening the other two. Reversing this procedure causes the
rim to become out of round.
Tighten or loosen spoke. Then recheck measurement. Small changes in the spokes can make large changes
in the runout.
Always work on groups that are opposite each other to maintain radial runout.
4. Spin the rim slowly. Check radial runout (2). The rim must be true within 0.76 mm (0.030 in).
a. Use SPOKE WRENCH (Part Number:HD-94681-80).
b. If the rim contacts the gauge on or near a marked group of spokes, loosen the spokes in the group on
the opposite side of the rim. Then tighten the spokes in the group where the rim makes contact an
equal number of turns.
c. If the rim contacts the gauge between two marked groups, loosen the spokes in both groups on the
opposite side of the rim. Then tighten the spoke groups on the side of the rim that makes contact an
equal number of turns.
5. When the wheel is true, start at the valve stem hole and tighten any loose spoke nipples one turn at a time until
they are snug.
6. Working alternately across the wheel, use SPOKE TORQUE WRENCH (Part Number:HD-48985) evenly
tighten all spokes to specification listed in Table 1.
7. Straight flange hub: Verify that each spoke head is seated in the hub flange using a flat nose punch and
mallet.
8. Verify that radial runout is still within specification.
9. Proceed to lateral runout.
WARNING
Spokes that are too tight can draw nipples through the rim or distort hub flanges. Spokes that are too loose can
continue to loosen when put in service. Either condition can adversely affect stability and handling, which could
result in death or serious injury. (00286a)
1
Wheel truing and balancing stand
2
Radial runout
3
Gauge rod
4
Bead safety hump
Figure 1. Checking Radial Runout
Table 1. Spoke Nipple Torque Specification
RIM TYPE
MINIMUM TORQUE
All
6.2 N·m (55 in-lbs)
Adjust Lateral Runout
NOTE
Dial indicators are more accurate than gauge rods.
1. See Figure 2. Adjust the gauge rod (3) near to the rim bead flange. If using a dial indicator, place the tip
against the bead flange.
2. Rotate the rim slowly to check lateral runout (2). If runout exceeds 0.76 mm (0.030 in), adjust spokes:
NOTE
Always loosen the appropriate spokes before tightening the other two. Reversing this procedure causes the
rim to become out of round.
Tighten or loosen spoke. Then recheck measurement. Small changes in the spokes can make large changes
in the runout.
Always work on groups that are opposite each other to maintain radial runout.
3. Working in groups of four, loosen two spokes on the tight side and tighten the two spokes on the loose side.
4. Repeat with each group until wheel is within specification.
5. Verify that all spoke nipples are tightened to the specification. Refer to Table 1.
6. File or grind off ends of spokes that protrude through the nipples to prevent puncturing tube or rim seal.
1
Wheel truing and balancing stand
2
Lateral runout
3
Gauge rod
Figure 2. Checking Lateral Runout
1. Raise front or rear wheel. See Secure the Motorcycle for Service.
NOTICE
When lifting a motorcycle using a jack, be sure jack contacts both lower frame tubes where down tubes and lower
frame tubes converge. Never lift by jacking on cross-members, oil pan, mounting brackets, components or housings.
Failure to comply can cause serious damage resulting in the need to perform major repair work. (00586d)
1. Turn the wheel through several rotations.
NOTE
When checking end play, pull or push on the wheel not the brake disc. Pulling or pushing brake disc can distort
disc causing a false end play reading.
2. Check end play:
a. See Figure 1. Mount a magnetic base dial indicator to the brake disc. Set the indicator contact point on the
end of the axle.
b. Firmly push the wheel to one side. Zero the dial indicator gauge.
c. Firmly pull the wheel back. Note the reading of the dial indicator.
d. Repeat the procedure to verify the reading.
e. Replace the bearings if end play exceeds 0.051 mm (0.002 in) or if there is drag, rough rotation or abnormal
noise.
Figure 1. Measuring Lateral End Play (Front Wheel) (Typical)
Special Tools
Description
Part Number
Qty.
WHEEL BEARING
HD-44060D
1
INSTALLER/REMOVER
1. Remove wheel. See Prepare or Prepare.
2. See Figure 1. Assemble WHEEL BEARING INSTALLER/REMOVER (Part Number:HD-44060D).
a. Lubricate draw down bolt or a suitable threaded rod with two locking nuts.
b. Install nut (2), washer (3) and bearing (4) on screw.
c. Insert assembly through hole in bridge (6).
d. Install ball bearing inside collet (5). Fasten collet and ball bearing to forcing screw (1).
3. Remove bearings.
a. See Figure 1. Hold end of forcing screw (1) and turn collet (5) to expand edges of collet.
b. See Figure 2. Hold end of forcing screw (1) and turn nut (2) to remove bearing from wheel.
c. Remove spacer from inside wheel hub.
d. Repeat on opposite side.
4. Discard all bearings.
1
Forcing screw
2
Nut
3
Washer
4
Bearing
5
Collet with ball bearing
6
Bridge
Figure 1. Gripping Bearing
1
Forcing screw
2
Nut
Figure 2. Removing Bearing
Special Tools
Description
Part Number
Qty.
WHEEL BEARING
HD-44060D
1
INSTALLER/REMOVER
NOTE
Front wheel: Install bearing on the brake disc or left side first.
Rear wheel: Install bearing on the brake disc or right side first.
Install ABS bearing on the brake disc side of the wheel.
1.
See Figure 1. Assemble wheel bearing installer/remover.
Special Tool: WHEEL BEARING INSTALLER/REMOVER
(HD-44060D)
a. Lubricate draw down bolt or a suitable threaded rod
with two locking nuts.
b. Insert threaded rod (1) through support plate (2).
c. Insert assembly through wheel.
d. Place new bearing on threaded rod (1).
NOTE
Bearing orientation is important.
Standard bearing: Lettered side against
pilot (6).
ABS bearing: Red side against wheel.
e. Install pilot (6), bearing (5), washer (4) and nut (3)
over rod.
NOTICE
Replace both bearing assemblies even if one
assembly appears to be good. Mismatched
bearings can lead to excessive wear and premature
replacement. (00532c)
2. Install bearings.
a. Hold hex end of threaded rod (1) and turn nut (3).
b. Bearing is fully seated when nut can no longer be
turned.
c. Remove tool.
d. Install spacer sleeve inside wheel hub.
e. Reverse tool.
f. Install opposite side bearing.
3. Install wheel. See Prepare or Prepare.
1
Threaded rod
2
Support plate
3
Nut
4
Washer
5
Bearing
6
Pilot
Figure 1. Installing Wheel Bearing
1. Lower wheel.
WARNING
Be sure tires are properly inflated, balanced, undamaged, and have adequate tread. Inspect your tires regularly and
see a Harley-Davidson dealer for replacements. Riding with excessively worn, unbalanced, improperly inflated,
overloaded or damaged tires can lead to tire failure and adversely affect stability and handling, which could result in
death or serious injury. (00014b)
Always maintain proper tire pressure. Refer to Specified Tires. Do not load tires beyond GAWR specified in Weights: FL
Models or Weights: FX Models. Underinflated, over-inflated or overloaded tires can fail.
NOTE
Check runout on wheel before installing a new tire. See General.
Store new tires on a horizontal tire rack. Storing in a vertical stack compresses the tires and closes the beads.
Inspect tires for punctures, cuts, breaks and wear at least weekly.
See Figure 1. The tread wear indicators appear when 0.8 mm (1⁄32 in) or less tread remains. Always replace tires
before tread is worn to the indicators.
Replace tire if:
Tread is worn to the tire wear indicators.
Tire cords or fabric are visible.
Tire has a bump, bulge or split.
Puncture that cannot be repaired.
Refer to Specified Tires for recommended tires.
1
Sidewall
2
Tread surface
Figure 1. Tread Wear Indicators (Typical)
NOTE
ABS models must use properly inflated tires and wheels that are the same as the original equipment. The ABS
monitors rotational speed of the wheels through individual wheel speed sensors to determine the application of ABS.
Different diameter wheels or tires can:
Alter the rotational speed which can upset the calibration of the ABS.
Adversely affect its ability to detect and prevent lockups.
Operating with over- or under-inflated tires can reduce ABS performance.
1. Remove wheel. See Prepare or Prepare.
2. Check wheels for lateral and radial runout. See Checking Wheel Runout.
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