General
WARNINGNever bend belt forward into a loop smaller than the drive sprocket diameter. Never bend belt into a reverse loop. Over bending can damage belt resulting in premature failure, which could cause loss of control and death or serious injury. (00339a)
In the case of stone damage to belt, inspect the sprockets for damage and replace as required. If replacing belt, always replace all sprockets: rear (1), idler (2) and transmission (3). See Figure 1.
Cleaning
Keep dirt, grease, oil, and debris off the drive belt, sprockets and belt tensioner. Clean the belt with a rag slightly dampened with a light cleaning agent.
Sprockets
| 1. | See Figure 2. Inspect each sprocket tooth (1) for: a. Major tooth damage b. Gouges caused by hard objects | |
| 2. | Replace sprockets if major tooth damage exists. |
| 1 | Transmission sprocket |
| 2 | Rear sprocket |
| 3 | Tensioner |
Figure 1. Sprockets and Tensioner
| 1 | Tooth |
| 2 | Groove |
Figure 2. Rear Sprocket
Drive Belt
- Cuts or unusual wear patterns
- Outside bevel wear (8). Some beveling is common, but it indicates that sprockets are misaligned
- Outside ribbed surface for signs of stone damage (7). If cracks or other damage exists near edge of belt, replace belt immediately. Damage to center of belt eventually requires belt replacement. However, when cracks extend to edge of belt, failure is imminent
- Inside (toothed portion) of belt for exposed tensile cords (normally covered by nylon layer and polyethylene layer). Replace belt and transmission sprocket
- Signs of puncture or cracking at the base of the belt teeth. Replace belt if either condition exists
- Replace belt if conditions 2, 3, 6 or 7 (on edge of belt) exist
NOTE
Condition 1 may develop into 2 or 3 over time. Condition 1 is not grounds for replacing the belt, but it should be watched closely before condition 2 develops which will require belt replacement.
Figure 3. Drive Belt Wear Pattern
Table 1.
NO. | CONDITION | REQUIRED ACTION |
|---|---|---|
1 | Internal tooth cracks (hairline) | OK to run, but monitor condition. |
2 | External tooth cracks | Replace belt. |
3 | Missing teeth | Replace belt. |
4 | Chipping (not serious) | OK to run, but monitor condition. |
5 | Fuzzy edge cord | OK to run, but monitor condition. |
6 | Hook wear | Replace belt and sprocket. |
7 | Stone damage | Replace belt if damage is on the edge. |
8 | Bevel wear (outboard edge only) | OK to run, but monitor condition. |
9 | Cracks | OK to run, but monitor condition. Cracks are acceptable as shown unless cord (heavy black line in image 8) is exposed. |