Belt; Front Reel Limit Switch - Jacobsen 67983 Maintenance Manual

4 ADJUSTMENTS
4.7

BELT ____________________________________________________________________

Inspect and adjust new belt after first ten hours of operation.
Adjust every 100 hours thereafter.
Adjust alternator pulley so belt deflects 1/4 to 5/16 in. (6 to 8
mm) with a 20 lb. push at midpoint between pulleys. See
engine manual.
If tension is incorrect, loosen alternator mounting bolts (B)
and adjust alternator until proper belt tension is achieved.
4.8

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.
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 °.
en-18
NOTICE
B
1/4 to 5/16 in.
(6 to 8 mm)
LF012
Figure 4G
LF015
17°
I
Figure 4H