Snapper HI-VAC 7 Series User Manual

BEARING REPLACEMENT: If the driven disc bearing
fails, remove the complete driven disc assembly as
previously described. Then remove the snap ring (H)
(special pliers are required) and slide the driven disc
assembly out of bearing.
Remove the four retaining screws (I) and then the
bearing (J). Reassemble in reverse order. Refer to the
illustration FIG. 16.
To replace the bearing on pulley end of hex-shaft,
hold the shaft with an adjustable wrench (next to the
pulley). Then remove the 3/8' retaining hex lock nut
(located on outside of right rear wheel bracket).
Carefully remove holder, 0-ring, and bearing and
replace the bearing. Reassemble and carefully
reinstall the 0-ring over the outside of new bearing
-securely tighten the two retaining screws as shown
in FIG. 16-A.
BELT SERVICE
Slippage (from worn belts) can prevent self-
propelled models from maintaining optimum perfor¬
mance! On self-propelled models, the engine belt
transmits power to the Poly-V-Belt, which In turn,
engages the clutch to drive the transmission and
rear drive wheels.
ENGINE BELT REPLACEMENT: Disconnect the
spark plug wire and empty the fuel tank (or tape the
vents In the filler cap closed to prevent fuel spillage).
Unhook the Idler arm spring (A) from the right rear
wheel bracket and remove the driven disc assembly
as described in the DRIVEN DISC section. Tilt the
mower up on Its RIGHT wheels and remove the cut¬
ting blade and hub. Then remove the drive disc re¬
taining nut (B) and internal tooth lockwasher (C). Lift
the drive disc up from its position on the idler arm
and rempve worn belt. Loop one end of replacement
belt over engine drive pulley and insert other end
through deck opening. Loop the belt around driven
pulley (on the lower portion of drive disc) and lower
disc back into position on Idler arm (with the Idler
AGAINST the engine belt - when idler arm spring (A)
is reinstalled). Refer to FIG. 17.
Reinstall the internal tooth lock washer (C) and re¬
taining nut (B) onto drive disc post (on underside of
deck), and securely tighten. Test the pivoting action
of the idler arm - it must pivot freely! Reinstall the
blade and fasteners on shaft as explained In the
BLADE SERVICE section. Use a stiff wire (such as a
coat hanger) with a hook on end to pull the hooked
end of idler arm spring (A) through the large hole in
right wheel bracket, and then hook the spring’s end
through the smaller hole. If the Poly-V-Belt Is NOT
going to be replaced, reinstall the driven disc
assembly. lO
— FIG. 17-IDLER & ENGINE BELT DETAIL —

Snapper HI-VAC 7 Series Specifications

General

Brand	Snapper
Model	HI-VAC 7 Series
Category	Lawn Mower
Language	English