9.87
Model 644E-42/944E-42
Rev. 6/04
Electrical System
Not
OK
Repair/replace
open cab harness.
Replace auxiliary
joystick handle.
Not
OK
Unplug harness at auxiliary
joystick and measure
battery voltage at pin A.
Auxiliary hydraulics
do not function.
Wire [AH1] (RED/WHT) is
open. Repair/replace open
cab harness.
Replace fuse.
Plug harness back in at
auxiliary joystick, press button
and measure battery voltage
across auxiliary solenoid
AH A, connector wires
[AH2A] (BLU) and [AHG1]
(BLK) and solenoid AH B,
connector wires [AH2B]
(BLU) and [AHG2] (BLK).
Check auxiliary hydraulic
(F10) 5 amp fuse.
Not
OK
Not
OK
When button is pressed,
verify that solenoids are
magnetized by holding a
metal object next to the
solenoid. Or, test resistance
in solenoid. Refer to
Replace failed solenoid.
Not OK
If OK
If OK
If OK
If OK
If
OK
Problem is hydraulic.
Refer to Section 8,
Before troubleshooting any
electrical circuit, ALWAYS
begin by checking the
following:
1. All connections relating to
circuit are clean and tight.
2. All grounding straps are
intact and securely
fastened, refer to Section
9.1.12, “General Overview
(Vehicle Ground Strap
Locations).”
Continued on 9.89
Move connector from
auxiliary joystick to middle
joystick, press button and
measure battery voltage
across auxiliary solenoid
AH A, connector wires
[AH2A] (BLU) and [AHG1]
(BLK) and solenoid AH B,
connector wires [AH2B]
(BLU) and [AHG2] (BLK).
Содержание 944E-42
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Страница 14: ...Safety Practices 1 8 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 102: ...Boom 3 56 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 139: ...4 37 Model 644E 42 944E 42 Rev 6 04 Cab and Covers This Page Intentionally Left Blank...
Страница 144: ...Cab and Covers 4 42 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 174: ...Axles Drive Shafts Wheels Tires and Brakes 5 30 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
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Страница 430: ...Hydraulic System 8 180 Model 644E 42 944E 42 Rev 6 04 MU4100 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 6 6 16...
Страница 501: ...8 251 Model 644E 42 944E 42 Rev 6 04 Hydraulic System MT1950 2 3 4 5 6 7 8 5 5...
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Страница 508: ...Hydraulic System 8 258 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 525: ...9 17 Model 644E 42 944E 42 Rev 6 04 Electrical System This Page Intentionally Left Blank...
Страница 554: ...Electrical System 9 46 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 759: ...10 3 Model 644E 42 944E 42 Rev 6 04 Stabil TRAK System This Page Intentionally Left Blank...
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Страница 832: ...Transfer Carriage 11 32 Model 644E 42 944E 42 Rev 6 04 This Page Intentionally Left Blank...
Страница 840: ...12 8 Model 644E 42 944E 42 Rev 6 04 Index...
Страница 841: ...Accident Prevention Tags OS2180 8990403 Origin 5 00 Accident Prevention Tags...
Страница 842: ...Accident Prevention Tags OS2180 8990403 Origin 5 00...
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