Chapter 7 - Adjustments
Printed in U.S.A. 21 909793/BP0805
DRIVE BELT TENSION (Fig. 10)
The belts MUST be properly tensioned at all times to
prevent slipping. Loose belts will wear out faster and
cause poor cutting.
To tighten the belts:
Use the 18 mm box wrench (Ref. 1 - provided with the
mower) to turn the adjustment bolt until the spacer tube
(Ref. 2) is in contact with the main frame (Ref. 3) and
the washer (Ref. 4).
NOTE: During initial assembly and when fitting
new V- belts, give two additional complete turns on
the adjustment bolt.
IMPORTANT: It is very important that the belt
tension be checked and adjusted properly,
especially after the first few hours of use. Replace
belts ONLY as a complete set. If one of them
becomes damaged, the whole set must be
replaced.
1 - 18 mm Box Wrench
2 - Spacer Tube
3 - Main Frame
4 - Washer
Fig. 10: Drive Belt Tension Adjustment
1
2
3
4
BREAKAWAY LATCH TENSION
ADJUSTMENT (Figs. 11 & 12)
IMPORTANT: BE SURE all sliding areas (Fig.
11, Ref. 1) of the breakaway latch mechanism are
well greased and the mechanism is operating
properly.
1 - Sliding Area
2 - Latch Mechanism in “Latched” Position
3 - Spring Washer Stack
4 - Adjustment Nut
Fig. 11: Breakaway Latch
Tension Adjustment
1
2
3
4
Tension on the breakaway latch is determined by the
length of the spring washer stack (Fig. 12, Ref. 1). The
tension as set at the factory [3-3/4 in. (95 mm)] will be
suitable for most conditions. If the cutterbar continues
to break away, turn the adjustment nut (Fig. 11, Ref. 4)
clockwise to increase the breakaway pressure.
IMPORTANT: The length of the spring stack
(Fig. 11, Ref. 1) MUST NOT be less than 3-9/16 in.
(91 mm).
BE SURE that the spring washers are stacked as shown
in Fig. 12.
1 - Factory Setting 3-3/4” (95mm)
2 - Spring Washer Stack
Fig. 12: Breakaway Latch Spring Washer
Stack Detail
1
2
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