Toro VACU-POWER Service Manual page 75

Cutting Deck Adjustments (cont'd)
an amount of material from the pad equivalent to 20%
of the movement necessary at the blade tip. Check the
mounting pad height occasionally to make certain you
are not removing too much material. Be sure the
mounting pad is flat when complete. Recheck the
blade tip clearance to insure
it
is within specification
after adjusting the engine mounting pads. Always use
Loctite (R) when re-installing engine mounting bolts.
Blade Tip to Housing Clearance is the distance be-
tween the end of the blade and the side of the deck
(and the discharge ramp). See Figure 127. If t h i s
distance is too close, the blade tip may contact the side
of the deck. If the clearance is too great, clumps or
streaks of grass clippings may result. It is also possible
that the bag will not fill completely since the deck will
lose some of its vacuum around the circumference of
the deck.
ADJUST MOUNTING PADS
(ONLY AS REQUIRED)
Figure 126
CAUTION ! Do not adjust the engine mountlng pad
more than 1.5 mm
(.060").
If the dimension Is still
out
of specification after adjusting the engine mounting
pad, deck replacement may be required.
The specification for blade to tip housing clearance is
given below.
Blade Tip Clearance
4.3 2 mm (.I70
If the clearance is not greater than 2.3 mm (.090'")
around the circumference of the deck, loosen the
engine bolts, center the engine, then retighten the
bolts. Recheck to be sure that the blade to tip
clearance is now within the specification.
BLADE TIP CLEAR
Figure 127
If after centering the engine the clearance is still not
consistent around the circumference, the deck may be
warped do to manufacture, 'squeeze' type forklifts, or
operator abuse. Check with the Toro Consumer
Service Department if blade tip to deck Clearance is s t i l l
out of specification.
NOTE: The distance from the blade tip to the discharge
ramp can have a significant effect on quality of cut. For
best performance, adjust the ramp as close to the
blade tip as possible but not less than 2.3 mm (.090").
Cutting Deck Repair
If a foreign object is picked up by the blade, the deck
may
be damaged. Small cracks may be repaired by
welding.
If
cracks are large, or if pieces are missing,
the deck should be replaced.
CAUTION! Because the deck is aluminum, it is
imperative that only a welder experienced in aluminum
welding be used. If not, damage to the deck or
compromised structural integrity may result.
A
# 3 8 0
aluminum welding rod used in conjunction with
an
inert gas type welder is recommended.
Vacu-Power Mower