Service Manual

Rev. A
Groundsmaster 7200/7210 Page 5 - 27 Electrical System
Deck Lift/Lower Switch (Serial Number Above 313000000)
The deck lift/lower switch is used to raise and lower the
cutting deck on machines with a serial number above
313000000. The switch is attached to the right side trac-
tion lever (Fig. 36). The lift/lower switch is connected to
theswitchwireharnessthatrunsthroughtherightside
lever and connects to the main wire harness below the
control panel.
When the top of the lift/lower switch is pressed (momen-
tary position), both of the solenoid valve coils (A/S1 and
B/S2) on the hydraulic lift control manifold are energized
causing the valves to shift and the lift cylinder to extend
to raise the cutting deck. When the bottom of the lift/low-
er switch is pressed (detent position), solenoid valve coil
A/S1 on the hydraulic lift control manifold is energized
causing the valve to shift and the lift cylinder to retract
to lower the cutting deck.
Testing
1. Make sure ignition switch is OFF. Remove key from
ignition switch.
2. Move RH traction lever out of the neutral position and
remove two (2) screws that secure switch cap t o right
side motion control handle (Fig. 37). Carefully slide
switch cap with deck lift/lower switch and attached wire
harness from control handle.
3. Disconnect wire harness connectors from the lift/
lower switch.
4. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the lift/lower switch
connector terminals.
5. With the switch is its normal, centered position, there
should be no continuity (open circuit) between any of
the switch terminals.
6. With the top of the switch pressed (momentary posi-
tion), there should be continuity (closed circuit)
between the bottom and center switch terminals and no
continuity (open circuit) between the top and center
switch terminals.
7. With the bottom of the switch pressed (detent posi-
tion), there should be continuity (closed circuit)
between the top and center switch terminals and no
continuity (open circuit) between the bottom and cen-
ter switch terminals.
8. If testing determines that the deck lift/lower switch is
faulty, replace lift/lower switch.
9. After testing is complete, secure wire harness con-
nectors to deck lift/lower switch. Make sure that connec-
tors are attached to the switch terminals as shown in
Figure 37. The top switch terminal should have the
green wire connected to it for proper lift operation.
10.Carefully slide switch cap with lift/lower switch and
attached wire harness into r ight side control handle and
secure with two (2) screws.
1. RH tr action lever 2. Deck lift/lower switch
Figure 36
2
1
1. RH traction lever
2. Switch cap
3. Screw (2 used)
4. Switch wire harness
5. Deck lift/lower switch
Figure 37
Center Terminal
(White Wire)
(Yellow Wire)
(Green Wire)
Top Terminal
UP
Bottom Terminal
2
1
3
4
5
Electrical
System