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5-6 HYDRAULIC POWER SUPPLY ENGINE PACKAGE
To troubleshoot the engine in the hydraulic engine package, please refer to the owners manual that
was provided with the engine package.
5-7 REMOTE CONTROL
SYMPTOM
PROBLEM: REMEDY
DOES NOT FUNCTION
No power:
Check center pin of 7-way connector with voltmeter
(+12VDC). Correct wiring per Tractor Repair manual.
Check remote plugged in:
Self-explanatory.
No current to solenoid:
Check wire harness connection to
tractor.
No air supply to solenoid:
Check hydraulics connections.
5-8 DOCK LEVELER HYDRAULICS
For maintenance procedures,
See Section 4-13.
SYMPTOM
PROBLEM: REMEDY
FAILS TO LIFT SEMITRAILER
Insufficient hydraulic supply pressure:
adjust relief valve for
2400-2500 psi.
Worn hydraulic pump:
service or replace.
Insufficient volume to dock level circuit:
adjust flow divider
to provide 2.5 to 3.1 GPM.
Too heavy a load:
reduce load on cylinders.
LOWERS UNEVENLY OR
ERRATICALLY
Insufficient volume to dock level circuit:
clean system and
new oil and filter.
Dirty oil in check valves:
use same procedure as above.
5-9
Summary of Contents for 600A Series
Page 8: ......
Page 12: ......
Page 14: ...3 2 Figure 3 1 Front Trailer Terminology Figure 3 2 Rear Trailer Terminology...
Page 18: ...3 6 Figure 3 4 Hydraulic Controls...
Page 26: ...3 14 Figure 3 6 Steps for Loading and Unloading...
Page 32: ...3 20 Figure 3 9 Dock Leveler Operation...
Page 38: ...3 26 Figure 3 13 Rear Impact Guard and Antilock Brake System...
Page 42: ...4 2 Figure 4 1 Lubrication Points...
Page 48: ...4 8 Figure 4 3 600A Wiring Diagram...
Page 49: ...4 9 Figure 4 4 Remote Wiring Diagram...
Page 52: ...4 12 Figure 4 5 Tandem Axle Air Ride Suspension System...
Page 54: ...4 14 Figure 4 7 Triple Axle Air Ride Suspension System...
Page 57: ...4 17 Figure 4 9 Checking Axle Alignment DRIVER SIDE CURBSIDE Figure 4 10 Examples of Camber...
Page 61: ...4 21 Figure 4 13 Axle and Brake Assembly...
Page 66: ...4 26 Figure 4 15 Outboard Mount Hub and Drum Figure 4 16 Inboard Mount Hub and Drum...
Page 73: ...4 33 Figure 4 22 Dock Leveler Leg Assembly...
Page 75: ...4 35 Figure 4 23 Crank Landing Gear Assembly...
Page 86: ...NOTES 5 10...