MTD Snow Boss 550 - Manual (Page 11)

11
Shift Rod Adjustment
To adjust the shift rod, proceed as follows.
• Remove the hairpin clip and slide the connector up
to separate the upper shift rod from the lower shift
rod. See Figure 11.
Figure 11
• Place shift lever in sixth (6) position.
• Rotate the shift arm counterclockwise (from the
operator’s position) as far as it will go.
• Thread the upper shift rod downward until the
elbow on its lower end aligns with the hole found in
the lower shift rod.
• Reconnect the upper shift rod to the lower shift rod
by reinserting the hairpin clip removed earlier and
sliding the connector back down into place.
IMPORTANT: Make certain to check for correct
adjustment of the shift rod as instructed under the
heading Final Adjustments in Section 3 of this manual,
before operating the snow thrower.
Drive Wheels
The wheels may be adjusted for two different methods
of operation. The adjustment is made by placing the
click pins in one of two different holes on the right side
of the unit. See Figure 12.
Figure 12
One Wheel Driving—Insert the click pin only
through the outside hole of the axle (NOT the rim)
on the right side of the snow thrower. This position
gives power drive to the left wheel only, making the
unit easier to maneuver.
Both Wheels Driving—Insert the click pin through
the hole in the hub of the rim and the INSIDE hole
on the snow thrower’s right axle. This position is
good for heavy snow as there is power drive in both
wheels.
IMPORTANT: NEVER operate the snow thrower with the
click pin inserted through both the RIM and the
OUTSIDE HOLE in the axle. Doing so can result in
serious damage to the drive system.
SECTION 7: MAINTAINING YOUR SNOW THROWER
Lubrication
WARNING: Disconnect the spark plug wire
and ground against the engine before
performing any maintenance proceedures.
Engine
Refer to the seperate engine manual packed with your
unit for all engine lubrication instructions.
IMPORTANT: When following instructions in separate
engine manual for draining oil, be sure to protect frame
to avoid oil dripping onto transmission parts.
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
twenty-five hours of operation. The cams can be
accessed beneath the handle panel. Use a multi-
purpose automotive grease.
Gear Shaft
Lubricate the gear shaft with 6-n-1 grease at least once
a season or after every 25 hours of operation (available
at auto parts stores, or order part number 737-0170).
Refer to Figure 10.
Shift Lever
Ferrule
Shift Arm
Hairpin
Clip
Lower Shift Rod
Upper Shift Rod
Connector
Inside Hole
in Axle
Click Pin
in Outside Hole