Refer to Maintenance Scheduling → Regular Service Intervals → Regular Service Intervals: 2006 Dyna Models. The chaincase lubricant should be drained and refilled with fresh lubricant at proper intervals.
NOTICE
Do not overfill the primary chaincase with lubricant. Overfilling can cause rough clutch engagement, incomplete disengagement, clutch drag and/or difficulty in finding neutral at engine idle. (00199b)
Changing Chaincase Lubricant
| 1. | Ride motorcycle until engine is warmed up to normal operating temperature. | |
NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a) | ||
| 2. | See Figure 1. Using a T27 TORX drive head, remove five screws (3) (with captive washers) to free clutch inspection cover (2) from primary chaincase cover. | |
| 3. | See Figure 2. Remove magnetic drain plug at bottom of inner primary chaincase cover. Drain lubricant into suitable container. NOTE Dispose of chaincase lubricant in accordance with local regulations. | |
| 4. | Clean drain plug. If plug has accumulated a lot of debris, inspect the condition of the chaincase components. | |
| 5. | Install new o-ring on drain plug. | |
| 6. | Install drain plug back into inner primary chaincase cover. Tighten plug to 4.1–6.8 N·m (36–60 in-lbs). | |
NOTICE Do not overfill the primary chaincase with lubricant. Overfilling can cause rough clutch engagement, incomplete disengagement, clutch drag and/or difficulty in finding neutral at engine idle. (00199b) | ||
| 7. | Pour 0.95 liters (32 ounces) of GENUINE Harley-Davidson FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 quart) through the clutch inspection cover opening. NOTE Use only GENUINE Harley-Davidson FORMULA+ TRANSMISSION AND PRIMARY CHAINCASE LUBRICANT (Part No. 99851-05 quart). | |
 WARNINGBe sure that no lubricants or fluids get on tires, wheels or brakes when changing fluid. Traction can be adversely affected, which could result in loss of control of the motorcycle and death or serious injury. (00047d) NOTICE When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a) | ||
| 8. | Install clutch inspection cover and new gasket as follows: a. Thoroughly wipe all lubricant from cover mounting surface and groove in chaincase. b. Position gasket in groove in primary chaincase cover and press each of the nubs on gasket into the groove. The nubs will retain the seal in position. c. Insert screw (with captive washer) through clutch inspection cover and thread it into the top cover screw hole. d. Start the remaining four screws (with captive washers). e. Using a T27 TORX drive head, alternately tighten screws to 9.5–12.2 N·m (84–108 in-lbs). |
| 1 | Gasket |
| 2 | Clutch inspection cover |
| 3 | Screws with captive washer |
Figure 1. Clutch Cover: Dyna Models
| 1 | 36-60 in-lbs (4.1-6.8 Nm) |
Figure 2. Removal/Installation of Chaincase Drain Plug