Jacobsen LF 3800, Parts And Maintenance Manual

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3 ADJUSTMENTS
GB-14
3.12 REEL LIMIT SWITCH _______________________________________________________
The front left and right lift arms are equipped with reed
switches which signal the controller to turn off the reels.The
switches are mounted to the tractor frame 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 tractor 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. Manual adjust air gap between switch and arm to .060”
to 1.120”.
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
corresponding lamp on controller goes out (#17 for
L.H, #18 for R.H.). Secure switch in this position.
7. Repeat procedure for lift arm on opposite side.
8. Start engine and check that reels turn off when raised.
Note: The reed switches set the point where the reels
turn off, not how high they will raise. The reels will
actually raise to a position slightly above 17 °.
9. Start tractor and test operation of lift arms.
Figure 3L
3.13 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” (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 3/32in.
(0.8 to 2 mm) (O) when cylinder is fully extended.
Figure 3M
17
I
LF015
1/32” - 3/32”
0.8 - 2 mm)
J
M
N
O
K
K
+0 to1/16”
L
(+0 to 1.5 mm)
LF016