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740, 840 & 840G Snowblowers
6
ASSEMBLY INSTRUCTIONS – cont’d.
5. Hydraulic spout swivel:
a) Mount the swivel arm (#60) onto the swivel pin welded to the back
corner of the fan housing using a 1" I.D. washer (#29) and a 3/16" x
1 ½” cotter pin (#62).
b) Wrap cable (#61) around spout and clamp to the ends of the swivel using
3/16" cable clamps (#17).
c) With the swivel in extended position (i.e. cylinder fully extended) and the
spout turned to the right, clamp the cable to the spout cable anchor using
a ¼” cable clamp (#84). Ensure that the spout is not jammed and that
there is no slack in the cable.
d) Use a standard 8" stroke cylinder (20 ¼” min., 28 ¼” max. pin centers).
e) Note: A hydraulic cylinder and hose kit to control the spout deflector is
available as an option.
6. Hand Crank (Option):
a) Fasten hand crank assembly (#5) using two ½” x 1 ¼” hex bolts, lock
washers and hex nuts.
b) Thread cable (#7) through hole in hand crank to even lengths and wrap
around the tube to each side of the hole four turns in opposite directions.
c) Turn spout to center forward position and clamp cable to cable anchor on
far side of spout using clamp (#84).
7. Mounting blower on tractor:
a) Mount the blower on a tractor with a category 1 or category 2 hitch.
b) Using tape or bright colored marking pen, mark on the outer shields the
position where the shaft is completely pushed together and the position
where you have a 4" overlap. Watch these marks when moving the
blower through all possible operating angles to see that the PTO shaft
stays within this range.
c) With the engine on the tractor shut off, attach the PTO shaft. The tractor
end has a standard 6-spline end with a spring loaded locking collar. The
Snowblower end has a clamp-style yoke with a 3/8" keyway. Slide the
yoke onto the gearbox shaft with the 3/8" key supplied. Lock the yoke in
place with the ½” x 3" hex bolt and lock nut fitted through the groove in the
gearbox shaft. After tightening the bolt, insert and tighten the 3/8" socket
set screw supplied. CAUTION : Always check to see that both
ends of the PTO shaft are securely attached every time the Snowblower is
used. This should always be done with the Tractor engine off.
d) Check that the PTO shaft does not bottom or separate with the blower in
the extreme high and low positions. A longer optional PTO shaft is
available if the standard shaft is too short. Check for free movement of all
parts in various raised positions; particularly the PTO shaft .