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Greensmaster 3150 Page 5 -- 21 Electrical System
Backlap Switch
The backlap switch is a normally open ball switch that is
in the normal, open state whenthe backlap lever is in the
mow position. When the backlap lever is in the backlap
position, the switch closes. The backlap switch is at-
tached to the front of the hydraulic control manifold lo-
cated under the operator seat (Fig. 24).
Testing
1. Park machine on a level surface. Make sure the en-
gine and ignition switch are OFF.
2. Raise operator seat to allow access to hydraulic con-
trol manifold. Locate the backlap switch on the front of
the manifold. Disconnect the wire harness electrical
connector from the backlap switch.
3. Check the continuity of the switch by connecting a
multimeter (ohms setting) across the switch connector
terminals.
4. With the ignition switch in the OFF position, turn the
backlap lever to the backlap position while watching the
multimeter. Continuity should be made asthe switch clo-
ses.
5. Turn the backlap lever to the mow position while
watching the multimeter. Continuity should be brokenas
the switch opens.
6. If the backlap switch is faulty, replace switch. Make
sure that dowel and ball are placed in the manifold port
before installing new switch in manifold. Torque switch
to 20 ft--lb (27 N--m).
7. If the backlap switch tests correctly and a circuit
problem still exists, check wire harness (see Electrical
Schematic and Wire Harness Drawings in Chapter 9 --
Foldout Drawings).
8. After testing is completed, connect wire harness
electrical connector to the backlap switch. Lower opera-
tor seat.
1. Backlap switch
2. Backlap lever
3. Ball
4. Dowel
5. O--ring
Figure 24
2
1
3
20 ft--lb
(27 N--m)
4
5
1
Electrical
System