Groundsmaster 4500--D/4700--D Page 5 -- 19 Electrical System
Cutting Deck Lift Switches
The cutting deck lift switches are used as inputs for the
TECcontrollertoraiseorlowerthecuttingdecks.When
the front of a lift switch is depressed and held, the con-
trolled decks will lower. When the rear of a lift s witch is
depressedand held,thecontrolleddeckswillraise.The
decks will remain in position w hen the switch is re-
leased.Thelifts witches arelocatedonthe c onsole arm
(Fig. 20).
NOTE: To lower the cutting decks, traction speed has
to be in low range (4WD). Also, to raise or lower the
decks, the seat has to be occupied.
Testing
1. Before disconnecting the lift switch for testing, the
switch and its circuit wiring should be tested as a TEC
input with the Diagnostic Display (see Diagnostic Dis-
playintheTroubleshootingsectionofthischapter).Ifthe
Diagnostic Display verifies that the liftswitch and circuit
wiringarefunctioningcorrectly,nofurtherswitchtesting
is necessary. If, however, the Display determines that
the lift switch and circuit wiring are not functioning cor-
rectly, proceed with test.
2. Make sure ignition switch is OFF. Remove key from
ignition switch.
3. Disassemble console arm to gain access to cutting
deck lift switches (see Console Arm Disassembly inthe
Service and Repairs section of Chapter 7 -- Chassis).
4. Disconnect harness electrical connector from the lift
switch.
5. Theswitchterminalsaremarked as shown inFigure
22. The circuit logic of the lift s witches is shown in the
chartbelow.Withtheuseofamultimeter(ohmssetting),
theswitchfunctionsmaybetestedtodeterminewhether
continuityexists between thevariousterminalsforeach
position.Verifycontinuitybetweenswitchterminals.Re-
place switch if testing identifies a faulty switch.
SWITCH
POSITION
CLOSED
CIRCUITS
OPEN
CIRCUITS
DECK LOWER 2+3
5+6
2+1
5+4
NEUTRAL NONE ALL
DECK RAISE 2+1
5+4
2+3
5+6
6. Ifliftswitchtestscorrectlyandcircuitproblemstillex-
ists,checkwireharness(seeElectricalSchematicsand
Wire Harness Drawings in Chapter 9 -- Foldout Draw-
ings).
7. After testing is completed, connect wire harness
connector to the lift switch.
8. Assembleconsolearm(seeConsoleArmAssembly
intheService andRepairssectionofChapter 7 -- Chas-
sis).
1. Console arm
2. Lift switch (#1 to #5)
3. Lift switch (GM4700 #7)
4. Lift switch (GM4700 #6)
Figure 20
1
2
3
4
Figure 21
#4 #1 #5
#7
(GM4700)
#6
(GM4700)
#3#2
CUTTING
DECK
LOCATIONS
Figure 22
BACK OF SWITCH
NOTE: Lift switch terminals 4, 5 and 6 are not used on
Groundsmaster 4500--D and 4700--D machines.
Electrical
System
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