Bonded Friction Wheel, Discharge Chute, Engine

IMPORTANT: To relieve pressure, always remove the vent plug before lubricating the gear case. See Figure

14.Failure to do so could result in damage to the gear case seals.

Vent Plug			Grease Fitting
Grease			Grease
Fitting	Shear Bolt	Bearings	Fitting
	Shear Bolt	Shear Bolt
		Shear Bolt

Figure 14

Discharge Chute

The base of the discharge chute and the spirals on the chute crank should be lubricated at least every 25 hours of use. Apply the lubricant under the base of the chute and where the spirals contact the discharge chute. See Figure 15.

Chute Crank Spirals

Lube Under Chute Base

Figure 15

Drive and Shifting Mechanism

At least once a season or after every 25 hours of operation, remove rear cover. Lubricate any chains, sprockets, gears, bearings, shafts, and the shifting mechanism at least once a season. Use engine oil or a spray lubricant. Avoid getting oil on friction wheel and aluminum drive plate. Refer to Figure 11.

Gear Shaft

Lubricate the gear shaft with 6-in-1 grease (part number 737-0170) at least once a season, or after every 25 hours of operation. Refer to Figure 11.

IMPORTANT: Be careful not to allow grease to get on the drive plate or friction wheel.

Traction Control / Auger Control Lock

The cams on the ends of the control rods which interlock the traction drive and auger drive clutches must be lubricated at least once a season or every 25 hours of operation using a multi-purpose automotive grease. The cams can be accessed beneath the handle panel. See Figure 16.

Handle Panel

Lube Cams Here

Control Rods

Figure 16

Engine

Refer to the separate engine manual packed with your unit for all engine lubrication instructions.

Bonded Friction Wheel

Follow the instructions below to check the condition of the bonded friction wheel every 25 hours of operation.

•Remove the six self-tapping screws from the frame cover underneath the snow thrower.

•Visually inspect the bonded friction wheel for excessive wear, cracks, or loose fit on the friction wheel drive hub.

•Also engage the traction control and check if the friction wheel is making contact with the friction plate. Refer to Figure 11.

•If it does not make contact, adjust the traction drive cable and recheck the friction wheel.

•Replace bonded friction wheel if necessary. Refer to instructions in Service Section on Page 17.