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Service Adjustments
Deck Belt Tension
It is recommended to check and adjust if necessary the
deck belt tension after the initial 5 hours of use on the hour
meter. The new belt will seat into pulley grooves and may
need adjusting. After the initial break in period, it is
recommended to inspect belt tension and adjust if
necessary every 8 hours. Follow the steps below to inspect
belt tension. Follow ALL safety precautions mentioned in
this manual when doing any maintenance on your mower.
Note: Failure to inspect and adjust the deck belt tension
can result in poor mowing performance
and pre-mature
belt wear.
I
DANGER
Figure 3
Figure 3:
Move the blade engagement handle to
the "ON" position.
Using your hand, press the clutch pulley
(7) in the direction indicated with about
20-251bsof pressure. Ensure that the
swing arm(8) stops within 1 inch to 1.5
inches from the stop bolt(9).
48ZS
Figure 4:
•
If the swing arm reaches the stop bolt
(9), the tension is too loose. Move the
blade engagement handle to the "OFF"
position. Loosen the turn-buckle
Iocknut
(10). Adjust the turnbuckle linkage(11),
extending the pulley. Move the blade
engagement handle back to the "ON"
position and repeat test by applying 20-
25 Ibs of pressure and checkthe
stop
bolt clearance. The swing arm should be
1" - 1.5" away from the stop bolt.
•
Iftheswing
arm hasa clearance
greater than 1.5" the tension is too tight.
This may result in pre-mature belt wear,
as well excess stress on the springs of
the clutch. Adjust the turnbuckle
as
mentioned above.
Figure 4
Rev:
May2011
STANLEY 48" ZS
18
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