General

Refer to Maintenance Scheduling → Regular Service Intervals → Regular Service Intervals: 2013 Trike Models. The primary chaincase lubricant should be drained and refilled with fresh lubricant at specified intervals.

Check Lubricant Level

1.	Ride motorcycle until engine is warmed up to normal operating temperature.
2.	Park vehicle on a level surface, so that primary chaincase is level.
	WARNING To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a)
3.	Disconnect negative battery cable. See Maintenance and Lubrication → Battery Access.
4.	See Figure 1. Remove five screws to free clutch inspection cover from primary chaincase cover.
5.	Remove seal ring from clutch inspection cover and discard.
6.	If the fluid level is visible through the clutch inspection cover opening, it is adequate. If necessary, add enough of the recommended GENUINE Harley-Davidson lubricant until it is visible along the bottom portion of the clutch assembly. Refer to Table 1.
7.	Refer to CHANGING CHAINCASE LUBRICANT to install seal ring and clutch inspection cover.
	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)
8.	Connect battery negative cable. Tighten to 6.8–7.9 N·m (60–70 in-lbs).

Table 1. Recommended Primary Chaincase Lubricant

LUBRICANT	REFILL QUANTITY
FORMULA+ TRANSMISSION AND PRIMARY CHAIN LUBRICANT or SCREAMIN' EAGLE SYN3 FULL SYNTHETIC MOTORCYCLE LUBRICANT 20W50	1.12 L (38 fl oz) (wet) 1.33 L (45 fl oz) (dry)

1	Clutch inspection cover
2	Screws with captive washer
3	Clutch cover torque sequence
4	Drain plug

Figure 1. Primary Chaincase Cover

Changing Chaincase Lubricant

NOTICE

When draining or adding lubricant, do not allow dirt, debris or other contaminants to enter the engine. (00198a)

1.	Ride motorcycle until engine is warmed up to normal operating temperature.
	WARNING To prevent accidental vehicle start-up, which could cause death or serious injury, disconnect negative (-) battery cable before proceeding. (00048a)
2.	Disconnect negative battery cable. See Maintenance and Lubrication → Battery Access.
3.	Remove five screws to free clutch inspection cover from primary chaincase cover.
4.	Remove drain plug at bottom of primary chaincase. Drain lubricant into suitable container. NOTE Dispose of chaincase lubricant in accordance with local regulations.
5.	Clean drain plug magnet. If plug has accumulated a lot of debris, inspect the condition of chaincase components.
6.	Inspect drain plug O-ring for cuts, tears or signs of deterioration. Replace as necessary.
7.	Install drain plug into primary chaincase and tighten to 19–28.5 N·m (14–21 ft-lbs).
8.	Pour 1.12 L (38 fl oz) of the recommended GENUINE Harley-Davidson lubricant through the clutch inspection cover opening. Refer to Table 1. NOTE Only add 45 fl. oz. (1331 ml) after service that involves removal of the primary chaincase or primary chaincase cover.
	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) WARNING Be 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)
9.	Swab all lubricant from seal ring groove in clutch inspection cover. Install new seal ring in groove with nubs contacting ring groove walls.
10.	See Figure 1. Install clutch inspection cover to primary chaincase cover. Tighten screws in the sequence shown to 9.5–12.2 N·m (84–108 in-lbs).
11.	Connect battery negative cable. Tighten to 6.8–7.9 N·m (60–70 in-lbs).