Jacobsen 67991, Maintenance Manual

Page: 14 / 156

3 ADJUSTMENTS
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3.11 FRONT REEL LIMIT SWITCH ________________________________________________
The front left lift arm is equipped with a proximity switch,
which signals the controller to turn off the reels.The switch is
mounted to the mower frame directly behind the lift arm. If
reels continue to run when lifted, or do not run when
lowered, inspect switch. Adjust or replace switch as needed.
To adjust switch:
1. Park mower on a flat, level surface.
2. Remove reel from lift arm.
3. Turn ignition key to the RUN position to activate
controller. Do not run reels or start engine.
4. Adjust switch as required to obtain air gap between
switch and arm of 1/8 to 3/16 in. (3 to 5 mm).
5. Lift arm manually until it is at an angle of 17°.
6. With lift arm at 17°, adjust switch (I) up or down, until
switch contacts close. Secure switch in this position.
7. Start engine and check that reels turn off when raised.
Figure 3J
3.12 STEERING TOE-IN _________________________________________________________
1. Turn wheels to straight ahead position.
2. Loosen jam nuts (J) on both sides of tie rod (M).
3. Turn tie rod (M) to provide proper toe-in. Toe-in must
not 1/16 in. (1.5 mm) (K). Retighten jam nuts.
4. After adjusting tie rod, adjust steering cylinder by
threading the rod (N) in or out of ball joint so spindle
arm (L) clears the stop on the axle by 1/32 to 3/32 in.
(0.8 to 2 mm) (P) when cylinder is fully extended.
Figure 3K
NOTICE
The proximity switch sets the point where the reels turn
off, not how high they will raise. The reels will actually
raise to a position slightly above 17 °.
I
LF015
17°
1/32 - 3/32 in.
0.8 - 2 mm)
J
M
N
P
K
K
+0 to1/16 in.
L
(+0 to 1.5 mm)
LF016