50
TROUBLESHOOTING
Deck System Resistance Test Procedure
Make sure your Digital Multi
m
eter is capable of measuring up to 1.2
million
ohms(Ω) resistance before beginning these steps. Refer to your Digital Multi
m
eter
O
wner
'
s
M
anual for correct dial settings.
Always disconnect the batteries before performing any maintenance or repair.
Wait 5
minutes after disconnecting the batteries
before
working on the machine.
1
Remove any debris build
-
up from all deck components.
2
Verify all power connections on deck motors and deck controller are
torqued properly. If loss connections are discovered
,
tighten to the correct
torque values found in service and repair manual. Reconnect the batteries per
the instructions in the service and repair manual and check for proper deck
operation. If loose connections are not found
,
proceed to step 3.
3
Label all (8) deck controller connection points (per Figure 3, page 13) on the edge
of the deck controller housing so they are easily viewed for correct re-connections.
4
To ensure correct re-connection, mark all (8) wire connections with the
corresponding connection point labels from step 3.
5
Remove all (8) wire connections from the deck controller.
6
Measure deck controller resistance (Ω) : Reference Figure 3, page 13.
(A) Place the negative (-) probe of a digital multimeter on the positive (+) battery
terminal of the deck controller. (B) Place the positive (+) probe of the digital
multimeter on deck controller terminals AR, then CR. Resistance for each should
read between 270K (Ω) and 330k (Ω). If resistance is above or below the specified
range
,
the deck controller will need to be replaced. Repeat process for deck
controller terminals AL, BL and CL.
7
If no issues are found
,
reinstall deck controller wire connections to the proper
torque values located in the service and repair manual. (See page 28)
8
Measure deck motor resistance (Ω): Reference Figure 4, page 13.
(A)
Place the negative (-) probe of a digital multimeter on motor terminal A.
(B)
Place the positive (+) probe of the digital multimeter on motor terminals B,
then C. If the resistance is more than o to 1 (Ω)
ohms the deck motor will need to
be replaced. Repeat process for other deck motor as needed.
9
Measure the resistance in the six
-
pin motor connector (per Figure 5, page 13) by
placing the negative (-) probe of a digital multimeter on pin 2 and the positive (+)
probe on pin 3. Resistance should read between 800k(Ω) and 1.2m (Ω) ohms.
Resistance between pin 2 and pins 1,4,5 and 6 should be 0 ohms. If resistances
are above or below these ranges
,
the deck motor will need to be replaced. Repeat
the process for the other motor as needed.
10
If steps 1-9 are completed and the issues persist
,
please refer to the
mower
manufacturer's procedure for wiring harness troubleshooting for possible
repair or
replacement.
Summary of Contents for 2508902
Page 18: ...18 Neutral bypass knob Motor KNOW YOUR ZERO TURN MOWERS Fig 8 Fig 9...
Page 54: ...54 EXPLODED VIEW...
Page 55: ...55 PARTS LIST...
