Service Manual

CAUTION
Reelmaster 6500–D/6700–D
Page 5 – 25
Electrical System
Checking Interlock Switches
The purpose of the interlock switches are to prevent the
engine from cranking or starting unless the traction ped-
al is in NEUTRAL, the Enable/ Disable switches are in
DISABLE and the Lower Mow/Raise control is in the
neutral position. In addition, the engine will stop when
the traction pedal is depressed with operator off the
seat.
THE INTERLOCK SWITCHES ARE FOR THE
PROTECTION OF THE OPERATOR AND BY-
STANDERS, AND TO ENSURE CORRECT OP-
ERATION OF THE MACHINE, SO DO NOT
BYPASS OR DISCONNECT THEM. CHECK
OPERATION OF THE SWITCHES DAILY TO
ASSURE INTERLOCK SYSTEM IS OPERAT-
ING. IF A SWITCH IS DEFECTIVE, REPLACE
IT BEFORE OPERATING. DO NOT RELY EN-
TIRELY ON SAFETY SWITCHES – USE COM-
MON SENSE!
To verify interlock switch function:
1. Park machine on a level surface, lower the cutting
units, stop the engine and engage the parking brake.
2. Open control panel cover. Locate wire harness and
connectors #1, #2 and leak detector (if equipped). Con-
nectors will have visible labels attached noting #1, #2
and leak detector (hydraulic cylinder symbol). Carefully
unplug loopback connectors from harness connectors.
3. Connect the Diagnostic ACE display connectors to
the correct harness connectors. Overlay decal #1 must
be used on connection #1, overlay decal #2 must be
used on connection #2 and leak detector overlay decal
must be used on leak detector connection.
Figure 10
1. Wire Harness and Connectors
1
4. Turn the key switch to the ON position, but do not start
machine.
Note: The red text on the overlay decal refers to input
switches and the green text refers to outputs.
Figure 11
1. Diagnostic ACE
1
5. The “inputs displayed
” LED, on lower right column of
the Diagnostic ACE, should be illuminated. If “outputs
displayed” LED is illuminated, press and release the
toggle button, on Diagnostic ACE, to change LED to “in-
puts displayed”. Do not hold button down.
6. The Diagnostic ACE will illuminate the LED
associated with each of the inputs when that input switch
is closed.
Individually, change each of the switches from open to
closed (i.e., sit on seat, engage traction pedal, etc.), and
note that the appropriate LED on Diagnostic ACE will
blink on and off when corresponding switch is closed.
Repeat on each switch that is possible to be changed by
hand.
7. If switch is closed and appropriate LED does not turn
on, check all wiring and connections to switch and/or
check switches with an ohm meter. Replace any defec-
tive switches and repair any defective wiring.
The Diagnostic ACE also has the ability to detect which
output solenoids or relays are turned on. This is a quick
way to determine if a machine malfunction is electrical
or hydraulic.
To verify output function:
1. Park machine on a level surface, lower the cutting
units, stop the engine and engage the parking brake.
2. Open control panel cover. Locate wire harness and
connectors #1 and #2 (Connectors will have visible la-
bels attached noting #1 and #2). Set HOC selector knob
to position ”A”.
3. Connect the Diagnostic ACE display connectors to
the correct harness connectors. Overlay decal #1 must
be used on connection #1 and overlay decal #2 must be
used on connection #2.
Electrical
System