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Section 2: Adjustments
Rear Wheel Cutting Height Adjustment
Refer to Figure 2-1 on page 14:
With mower still supported on blocks, reposition spacers
on the rear gauge wheels as follows:
1.
While holding one of the rear gauge wheels up,
remove linchpin from gauge wheel spindle.
2. Move the same thickness and number of spacers as
was moved for the front gauge wheels plus up to one
more 1/4" or 1/2" thick spacer from above to below
the gauge wheel spindle tube.
3. Repeat steps 1-2 for the other gauge wheel.
4. Slowly lower mower until gauge wheels touch the
ground and mower hitch clevises are level with the
ground. If not already done, set tractor 3-Point control
lever stop at this height and in float position.
5. Set park brake, turn off tractor, and remove key.
6. With a rag or thick padded glove, rotate blades
parallel to direction of travel.
7.
Measure distances from front blade tip and rear
blade tip to ground. The rear blade tip should be
equal to or slightly higher than the front blade tip but
not by more than 1/2". Never should the rear blade tip
be lower than the front blade tip.
8. Adjust rear gauge wheels up or down an equal
amount to change height of rear blade.
3-Point Hitch Adjustments
Refer to Figure 2-1 on page 14:
The 3-Point hitch system on this mower has been
designed for front to back flotation when mowing on
uneven terrain. This is done by adjusting the length of the
tractor's top center link until the upper hitch pin is
vertically above the lower hitch pin. See "Top Center
Link Adjustment" on page 10 for detailed instructions.
11/7/18
Table of Contents
Belt Tension
Refer to Figure 2-2:
!
WARNING
To avoid serious injury or death:
•
Excessive belt tension can lead to premature damage/
breakage of belt and drive component and is a safety hazard
to operator and bystanders.
•
Excessive belt tension can damage the belt and drive
components prematurely and is a safety hazard to the
operator and bystanders. Not enough tension can result in
excessive belt slippage causing premature belt damage.
!
CAUTION
To avoid minor or moderate injury:
The Belt drive system is under spring tension. Use care when
servicing the spring tensioned system to avoid bodily harm.
1.
To check belt tension, apply force at arrow A with a
tension tester until the belt has deflected 1/4 of an
inch. This force should range from 7 to 10 lbs. on the
tension tester.
2. To increase or decrease belt tension, adjust
eyebolt (#1) as needed until belt tension is from
7 to 10 lbs.
3. If more belt tension is required than the eyebolt can
adjust, then loosen the eye bolt until all tension on
spring (#2) is removed and reattach spring (#2) in the
next chain link (#3) closer to the eyebolt.
4. Tighten the eyebolt as needed until the belt is
properly tensioned.
1
3
2
Belt Tension (Top View)
Figure 2-2
FDR3690 Rear Discharge Grooming Mower 310-447M
33503
15
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