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Page Title:
Figure F1. Diagnostic Tree -- WT Series Hydraulic System With Gauges |
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 WTEC III ELECTRONIC CONTROLS TROUBLESHOOTING MANUAL
W
DIAGNOSTIC TREE
U
T SERIES HYDRAULIC SYSTEM
SING PRESSURE GAUGES AT MAIN & C1C5
HOT
HOT MAIN
SELECT
MAIN LESS
INSTRUMENT
PARKING BRAKE ON,
CIRCUIT
NEUTRAL
THAN 150
LEAK
MAIN & C1C5
START ENGINE
RANGE,
PSI
INSTALL PRO-LINK
WITH 300 PSI
ENGINE @ IDLE,
C3
PRESSURE
AND SWITCH TO
C3
ENABLE CLUTCH
CLUTCH
GAUGES
CLUTCH TEST MODE
TEST MODE
APPLIED
INOPERATIVE
ALL OTHER
CONDITIONS
C5
C5
CLUTCH
APPLIED
C1
C1
SELECT FIFTH
INOPERATIVE
CLUTCH
RANGE,
APPLIED
INOPERATIVE
C4
C4
ENGINE @ IDLE
CLUTCH
APPLIED
INOPERATIVE
ALL OTHER
CONDITIONS
C1
FORWARD
C1
NO
LATCH VALVE
CLUTCH
OFF
APPLIED
INOPERATIVE
INOPERATIVE
SELECT FOURTH
C2 LATCH VALVE
LOW CONTROL
C2
C1 & C2
OR FWD SOLENOID
MAIN
CLUTCH
PRESSURE
RANGE,
OFF
LOW
CTL = 1/3 CL PR
INOPERATIVE
ENGINE @ HIGH IDLE
ALL OTHER
CONDITIONS
C1
C2
C1
C2
PRESSURE
PRESSURE
LOW
LOW
INOPERATIVE
INOPERATIVE
SELECT SECOND
C4
C2
C2
C4
CLUTCH
CLUTCH
RANGE,
ON
OFF
INOPERATIVE
INOPERATIVE
ENGINE @ IDLE
ALL OTHER
CONDITIONS
C3
SELECT
C5
SELECT THIRD
CLUTCH
REVERSE
CLUTCH
SELECT FIRST
OFF
RANGE,
OFF
RANGE,
RANGE,
ENGINE @ IDLE
ENGINE @ IDLE
ENGINE @ IDLE
ALL OTHER
CONDITIONS
C3
CLUTCH
C5
OFF
CLUTCH
NO
C3
HYDRAULIC
OFF
C5
CLUTCH
SYSTEMS
APPLIED
CLUTCH
ON
OK
ON
C3
C5
C1 LATCH
INOPERATIVE
FORWARD
VALVE
INOPERATIVE
INOPERATIVE
INOPERATIVE
C2 LATCH
NOTE: Fifth range not attainable if
VALVE
ECU is programmed for ranges 1 4 only.
INOPERATIVE
V01102.02
Figure F1. Diagnostic Tree -- WT Series Hydraulic System With Gauges
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