Turn Around Switch (Rm 3555−D/3575−D) - Toro Reelmaster 3550-D Service Manual

Turn Around Switch (Reelmaster 3555−D and 3575−D)
The cutting unit turn around switch is a normally open
proximity switch that closes when the front right cutting
162 to 198 in−lb
(18.4 to 22.4 N−m)
unit (cutting unit #5) is in the turn−around position. The
turn around switch is attached to a bracket outside the
front right lift arm pivot pin. A plate on the front right lift
arm acts as the sensing plate for the turn around switch
(Fig. 17).
NOTE: The vertical location of the turn around switch
bracket will determine the turn−around height of the cut-
ting units. Raising the switch bracket will allow a higher
turn−around height of the cutting units. Lowering the
switch bracket will allow a lower turn−around height of
2
the cutting units.
1
Adjusting
0.094" to 0.100"
(2.4 to 2.5 mm)
1. Park the machine on a level surface, engage the
parking brake, lower the cutting units and stop the en-
Figure 17
gine. Remove the key from the ignition switch.
1. Signal plate 2. Turn around switch
(on lift arm #5)
IMPORTANT: To prevent turn around switch dam-
age, make sure that no components contact switch
through entire lift arm movement.
2. The distance between the down limit switch and the
sensing plate on lift arm should be from 0.094" to 0.100"
(2.4 to 2.5 mm).
3. If distance is incorrect, loosen jam nuts that secure
down limit switch to machine frame. Position switch with
jam nuts to allow correct clearance between switch and
sensing plate. Tighten switch jam nuts from 162 to 198
in−lb (18.4 to 22.4 N−m). After jam nuts are tightened,
make sure that clearance has not changed.
4. After adjusting the switch, use the Diagnostic Dis-
play (see Diagnostic Display − inputs in the Trou-
bleshooting section of this chapter) to verify that the
switch and circuit wiring are functioning correctly.
Electrical System Page 5 − 22 Reelmaster 3550−D/3555−D/3575−D