Lift Limit Switch - Jacobsen super lf 1880 Dealer's Manual

5 ADJUSTMENTS
3. Turn tie rod (R) to provide proper toe-in. Toe-in must not
exceed +1/16" (1.5 mm) (S). Align ball joints and tighten jam
nuts.
4. After adjusting tie rod, adjust steering cylinder by threading ball
joint (T) in or out so spindle arm clears the stop on the axle by
1/16 to 1/8 in. (1.5 to 3 mm) when cylinder is fully extended.

5.10 LIFT LIMIT SWITCH________________________________________________________________________

The center lift arm is equipped with a proximity switch which turns off the
reels.The switch is mounted to the front axle directly behind the lift arms.
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 switch to the OFF position and remove key.
4. Add or remove shims as required to obtain air gap between switch
and arm of 0.090 to 0.120 in. (2 to 3 mm).
5. Use a volt/ohm meter to determine when switch contacts open
or close.
Raise lift arm (Z) manually until it is at an angle of 30° above
6.
horizontal.
With lift arm (Z) at 30°, adjust switch (Y) as required, until switch
7.
contacts open. Secure switch in this position.
8. Manually lower lift arm. Switch contacts should close when arm
lowers below 30°.
Note: The 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 30°.
16
S
Q
R Q
T
+0 to 1/16"
S
(+0 to 1.5 mm)
Y
Figure 5H
Z
30°
Figure 5I