Walker IMPLEMENT HITCH SB6670 - Manual (Page 39)

Operating Instructions
39
Engaging the Snowblower
1. Make sure that the snowblower is clear of snow
and/or ice before engaging the snowblower.
2. Make sure that the auger and fan operate freely.
3. Check the oil level in the worm gearbox and if
necessary, add SAE 90 E.P. (Extreme Pres-
sure) oil. Make sure the oil level is up to the side
plug. (Refer to LUBRICATION of Two-Stage
Snowblower Gearbox in
Maintenance Instruc-
tions. )
4. Check the three (3) shear bolts, one on each au-
ger section, and one between the fan and gear-
box for proper tightness, approximately 8 ft-lb
(11 N·m).
5. Adjust the snowblower so that it runs level.
6. Set the engine throttle at about 1/3 speed. DO
NOT attempt to engage the PTO clutch at
high engine speeds. This will drastically short-
en drive belt life. Use only moderate engine
speed when engaging the PTO clutch.
7. Pull the PTO clutch lever SLOWLY to engage
the snowblower.
NOTE: For cold weather operation, allow suffi-
cient time for the snowblower components (i.e.,
gearbox oil) to warm up before beginning to blow
snow.
IMPORTANT: DO NOT engage the PTO clutch
when transporting the machine. DO NOT engage
the PTO clutch with the PTO shaft disconnected
(the snowblower removed from the tractor).
PTO Clutch Engaged
PTO Clutch Disengaged
Recommendations For Snowblowing
IMPORTANT: Operate the engine at full speed
when snowblowing, to allow the engine to produce
full horsepower and to increase efficiency of the en-
gine cooling system.
DANGER
A safety interlock switch (seat switch) will
cause the engine to stop if the PTO clutch
is engaged and the operator is not in the
seat. The function of this switch should
be checked by the operator raising off the
seat and engaging the PTO clutch; the en-
gine should stop. If the switch is not
working, it should be repaired or replaced
before operating the snowblower. DO
NOT disconnect the safety switches; they
are for the operator’s protection.
DANGER
If the auger strikes a solid object or the
machine begins to vibrate abnormally, im-
mediately disengage the PTO clutch, stop
the engine, and wait for all moving parts
to stop. Disconnect the fuel solenoid wire
[diesel engines] or the spark plug wire(s)
[gasoline engines] to prevent accidental
starting. Thoroughly inspect the snow-
blower and repair any damage before re-
starting the engine and operating the
machine. Make sure auger blades are in
good condition and all bolts are tight.
Engaged
Position
Disengaged
Position