M17 Service Information 90
17358
(
08
-
20
16)
4-49
TROUBLESHOOTING
Side Sweep Brush(es) Failed to Extend/Lower
STEP
ACTION
VALUE(S)
YES
NO
1
•
Key On
•
Enable side sweep brush extend/down
•
Is there a
pertinent
fault message
displayed?
See
“
Fault Section"
Go to Step #2
2
•
Key O
ff
•
See “Manual Mode” section of this manual
•
Extend/Lower the side brush in manual mode
•
Does the side brush extend/lower?
Go to Step #6
Go to Step #3
3
•
Key O
ff
•
See “Self-Test Mode”
•
Does the Self-Test display output circuits J4-1,
2 or
J4-11,
12 as open or shorted?
Correct Open
or Short Cir-
cuit Condition
Go to Step #4
4
•
Key O
ff
•
See “Input Display Mode”
•
Does I6: Side Sweep On/Off input
c
orrespond
with
side brush rocker switch position?
Go to Step #5
Correct Faulty
Input Condi-
tion
5
•
Key O
ff
•
See TESTING SIDE SWEEP BRUSH LIFT ACTUATOR in
the SERVICE section of this manual
•
Does the side brush lift actuator pass the testing?
See TESTING
SIDE SWEEP
BRUSH LIFT
ACTUATOR
Go to Step #6
Replace Side
Brush Lift
Actuator
6
•
Key O
ff
•
Reconnect side brush lift actuator to main wire har-
ness
•
Key On
•
Side brush extend/down enabled
•
Test voltage applied to side brush lift subsystem as
shown on the electrical schematic
•
Are the electrical circuits operating as shown on the
electrical schematic?
Go Back to
Step #1
Identify Volt-
age Drop
Location and
Repair or Re-
place Neces-
sary Compo-
nents
Terms:
J4-1,
2 = Side Sweep Module
J4-11,
12 = Side Scrub Module
Summary of Contents for M17 Series
Page 10: ...1 6 M17 Service Information 9017358 08 2016 SAFETY PRECAUTIONS ...
Page 124: ...4 28 TROUBLESHOOTING M17 Service Information 9017358 08 2016 ...
Page 182: ...4 86 M17 Service Information 9017358 08 2016 TROUBLESHOOTING ...
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