Cast wheel runout
PART NUMBER | TOOL NAME |
HD-99500-80 | WHEEL TRUING AND BALANCING STAND |
Wheel stand
1. Check the wheel bearings before measuring runout. See 2.5 WHEELS, Sealed Wheel Bearings.
2. Install the truing arbor in the wheel hub and mount the wheel in a WHEEL TRUING AND BALANCING STAND (Part No. HD-99500-80).
3. Tighten the arbor nuts so that the hub will turn on its bearings.
4. Mount a gauge rod or a dial indicator to the base of the truing stand.
Lateral runout
1. See Figure 2-41. Point the gauge rod or indicator at the rim bead flange.
![](https://motoinstruction.ru/img/harley/12/117658.jpg)
Figure 2-41. Lateral runout
2. Rotate the wheel and measure the lateral distance at several locations around the rim. Replace the wheel if lateral runout exceeds specification. Refer to Table 2-15.
Radial runout
1. See Figure 2-42. Point the gauge rod or indicator at the rim tire bead safety hump.
![](https://motoinstruction.ru/img/harley/12/117659.jpg)
Figure 2-42. Radial runout
2. Rotate the wheel and measure radial distance at several locations. Replace the wheel if radial runout exceeds specification. Refer to Table 2-15.
Table 2-15. Wheel rim runout
RUNOUT | in | mm |
Lateral | 0.030 | 0.76 |
Radial | 0.030 | 0.76 |
Laced wheel rim offset
PART NUMBER | TOOL NAME |
HD-94681-80 | SPOKE NIPPLE WRENCH |
HD-99500-80 | WHEEL TRUING STAND |
1. See Figure 2-43. Place a piece of tape to mark the center of each group off our spokes as shown. The groups should be directly opposite one another and approximately 90 degrees apart. Using different colors of tape or numbering each group is helpful.
![](https://motoinstruction.ru/img/harley/12/117660.jpg)
Figure 2-43. Marking spoke groups
2. See Figure 2-44. Mount wheel in WHEEL TRUING STAND (Part No. HD-99500-80) using truing arbor. Tighten arbor nuts so hub will turn on its bearings.
![](https://motoinstruction.ru/img/harley/12/117661.jpg)
Figure 2-44. Checking wheel hub offset dimension (typical)
Note. The primary brake disc side of the hub has one or two grooves cut into the disc mounting surface.
3. Lay a straightedge across the primary brake disc mounting surface of hub and one of the marked spoke groups.
4. See Figure 2-45. Measure the distance from the straightedge to the location shown, based on rim design, to determine distance A. Refer to Table 2-16.
![](https://motoinstruction.ru/img/harley/12/117662.jpg)
Figure 2-45. Laced wheel hub offset dimensions: 1. 16 in rim, rear; 2. 16 in rim, front; 3. 21 in rim, front
Table 2-16. Laced wheel hub offset dimensions
RIM | DIMENSION A | |||
TYPE | NO.* | SIZE | in | mm |
Rear | 1 | 16 | 1.472-1.492 | 37.39-37.90 |
Front | 2 | 16 | 1.139-1.163 | 28.94-29.55 |
3 | 21 | 0.837-0.857 | 18.14-18.90 |
* See Figure 2-45.
Notes:
- Always loosen the appropriate spokes before tightening the other two. Reversing this procedure will cause the rim to become out-of-round.
- 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.
5. If the dimension is not correct, adjust the four spokes using SPOKE NIPPLE WRENCH (Part No. HD-94681-80). 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. Turn all four spokes an equal number of turns until offset is to specification.
6. Repeat the previous step for all groups on the wheel. Verify the offset.
7. True the wheel. See 2.7 CHECKING AND TRUING WHEELS, Truing Laced Wheels.
Truing laced wheels
PART NUMBER | TOOL NAME |
HD-48985 | SPOKE TORQUE WRENCH |
HD-94681-80 | SPOKE NIPPLE WRENCH |
HD-99500-80 | WHEEL TRUING STAND |
FASTENER | TORQUE VALUE | |
Spoke nipple | 55 in·lbs | 6.2 Nm |
Notes:
- Dial indicators are more accurate than gauge rods.
- Radial truing should be performed before lateral truing.
Radial runout
1. See Figure 2-46. With the wheel mounted in WHEEL TRUING STAND (Part No. HD-99500-80), adjust the truing stand gauge (3) near to the rim's tire bead safety hump (4). If using a dial indicator, place the tip on the safety bead hump.
![](https://motoinstruction.ru/img/harley/12/117663.jpg)
Figure 2-46. Checking radial runout: 1. Wheel truing and balancing stand; 2. Radial runout; 3. Gauge rod; 4. Bead safety hump
2. If working with a straight flange hub, seat each spoke head in the hub flange using a flat nose punch and mallet.
Notes:
- Always loosen the appropriate spokes, using SPOKE NIPPLE WRENCH (Part No. HD-94681-80), before tightening the other two. Reversing this procedure will cause the rim to become out of round.
- Tighten or loosen spoke, one flat at a time, and 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. Spin the rim slowly and check distance (2). The rim should be true within 0.030 in (0.76 mm).
- a. 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.
- b. 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.
4. When the wheel is centered and trued, start at the valve stem hole and tighten any loose spoke nipples one turn at a time until they are snug.
5. Working alternately across the wheel, use SPOKE TORQUE WRENCH (Part No. HD-48985) evenly tighten all spokes to specification listed in Table 2-17.
Table 2-17. Spoke nipple torque specification
RIM TYPE | MINIMUM TORQUE |
All | 55 in·lbs (6.2 Nm) |
6. If working with a straight flange hub, verify each spoke head is seated in the hub flange using a flat nose punch and mallet.
7. Verify radial runout is still within specification.
8. After you have verified that radial runout is still within specification, 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.
Lateral runout
Note. Dial indicators are more accurate than gauge rods.
1. See Figure 2-47. With the wheel mounted in WHEEL TRUING STAND (Part No. HD-99500-80), adjust the gauge rod (3) near the rim bead flange.
![](https://motoinstruction.ru/img/harley/12/117664.jpg)
Figure 2-47. Checking lateral runout: 1. Wheel truing and balancing stand; 2. Lateral runout; 3. Gauge rod
2. Rotate the rim slowly and check lateral runout (2). If runout exceeds 0.030 in (0.76 mm), adjust spokes as follows.
Notes:
- Always loosen the appropriate spokes before tightening the other two. Reversing this procedure will cause the rim to become out of round.
- Tighten or loosen spoke, one flat at a time, and recheck measurement. Small changes in the spokes can make large changes in the runout.
3. Again 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 all spoke nipples are tightened to the specification. Refer to Table 2-17.
6. If the tire is removed from the rim, file or grind off ends of spokes that protrude through the nipples to prevent puncturing tube or rim seal when tire is mounted.
Note. After installation, verify the wheel is approximately centered between the fork fender bosses.