Special Tools
| Description | Part Number | Qty. |
|---|---|---|
| BELT TENSION GAUGE | HD-35381-A | 1 |
NOTE
Always use BELT TENSION GAUGE (Part Number:HD-35381-A) to measure belt deflection. Do not rely on "feel" as this can result in belts that are under tensioned. Loose belts will fail due to "ratcheting" (jumping a tooth).
Check deflection:
- At every scheduled service interval.
- With transmission in neutral.
- At loosest spot in belt.
- With motorcycle at room temperature.
- With motorcycle upright and rear wheel off the ground or on jiffy stand without rider or luggage.
WARNINGTo prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a)
| 1. | Disconnect negative battery cable. See Maintenance and Lubrication → Battery Access. | |
| 2. | Remove left side saddlebag. | |
| 3. | Slide O-ring on gauge toward 0 kg (0 lb) mark. | |
| 4. | See Figure 1. Fit cradle against bottom of belt midway between transmission sprocket and rear sprocket. | |
| 5. | Push upward on knob until O-ring slides to the 4.5 kg (10 lb) mark on the tool and compare belt deflection to scale on debris deflector. NOTE Each graduation on the scale represents 3.2 mm (⅛ in) of belt deflection. | |
| 6. | Measure deflection at several locations around the belt. Select the loosest measurement and compare with specifications in Table 1. Belt must be adjusted if not within specification. | |
| 7. | Connect battery negative cable. Tighten to 6.8–7.9 N·m (60–70 in-lbs). |
Table 1. Belt Deflection
MODEL | INCHES | MILLIMETERS |
|---|---|---|
FLHX, FLTRX | 1/4-7/16 | 6.4-11.1 |
Other models | 3/8-9/16 | 9.5-14.3 |
| 1 | Transmission sprocket |
| 2 | Rear wheel sprocket |
| 3 | 10 lbs (4.5 kg) of force |
| 4 | Amount of deflection |
Figure 1. Checking Belt Deflection