Gehl GE 383Z Excavator Repair Service Manual

Gehl GE 383Z Excavator Repair Service Manual

Gehl Excavator

Language: English
Format: PDF
Applicable for the Gehl Excavator  Model GE 383Z

• Gehl GE 383Z Excavator Repair Service Manual
• Gehl GE 383Z Excavator Operators Manual
• Gehl GE 383Z Excavator Repair Parts Manual

able of Content of the Gehl GE 803 Excavator Manual

Operation
Important information about this service manual
Abbreviations/symbols
Identification of warnings and hazards
Designated use and exemption from liability
Serial plates and component numbers
Serial number location
Engine number
Hydraulic pump identification number
Main valve block identification number
Travel drive identification number
Swivel unit identification number
Machine overview
Cab overview
Cab legend
Instrument panel overview
Instrument panel legend
Engine compartment overview
Chassis overview
Tilting the cab
Tilting the cab up
Tilting the cab down
SAE operating controls (standard)
ISO operating controls (selectable)
Boom slew/auxiliary hydraulics pedal
Dozer blade
Throttle lever
Operator’s seat adjustments
Ventilation
Windshield
Cab door latch release
Interior light
Tool kit and cab jack handle
Cab heat control
Recirculated air mode
Hydraulics swiveling and boom rotation pedal adjustment
Battery master switch

Specifications
Chassis
Engine
Hydraulic system
Undercarriage swivel unit
Dozer blade
Electrical system
Sound levels
Coolant compound table
Specific tightening torques
General tightening torques
Dimensions
Lift capacities
Lift capacity table with extended dipper arm and counterweight
Geometry

Maintenance
General information care and servicing
Care and servicing
Maintenance safety
Fluids and lubricants
Maintenance decal symbols
Maintenance decal
Maintenance schedule
General maintenance
Lubrication
Fuel system
Specific safety instructions
Filling the fuel tank
Fuel filter
Fuel shut-off valve, fuel prefilter and water separator
Purging air from the fuel system
Engine lubrication system
Changing engine oil and filter
Coolant system
Checking coolant level
Air cleaner service
Dust valve functional check
Checking and adjusting V-belt tension
Checking and adjusting air conditioning V-belt tension
Pressure check
Test report
Hydraulic system
Checking hydraulic oil level
Checking hydraulic pressure lines
Track system
Changing final drive oil
Electrical system
Battery
Using a booster battery jump-starting
Cab heater filter

Engine
4TNV98 engine overview
Fuel system
Removing the cylinder head cover
Checking and adjusting valve tip clearance
Cylinder head bolt tightening order
Checking the injection nozzles
Checking the nozzle jet
Injection timing
Adjusting engine RPM
Checking compression
Checking the coolant thermostat
Checking the thermal switch
Oil pressure switch
Checking the coolant circuit
Engine troubleshooting

Hydraulic System
Hydraulic pump
Main valve block
Drive counterbalancing system
Boom summation raise
Check valve load retaining valve
Dipper arm cylinder summation
Dipper arm check valve load retaining valve
Secondary pressure limiting valves for the auxiliary hydraulics option
Pilot valves
Valves
Travel drive up to serial no. AC 02793
Travel drive Auto 2-speed starting serial no. AC 02957
Swivel unit
Swivel joint
Breather filter
Troubleshooting the hydraulic system
Hydraulic diagram legend
Hydraulic diagram
Main valve block diagram

Electrical System
Ohm’s law current voltage resistance power
Measuring equipment measuring methods
Cable color coding
Relays
Electrical units
Fuse box in instrument panel
Main fuse box with relays
Relays
Lubrication strip accessory power socket
Joystick tip switches
Instrument panel overview
Switches overview
Alternator
Starter
Wiring diagram legend
Wiring diagram
Wiring harness legend engine—chassis
Wiring harness engine—chassis
Wiring harness legend switches
Wiring harness switches
Wiring harness cab roof
Wiring harness armrest
Wiring harness boom working light

Options
Air conditioning
Counterweight
Extended dipper arm
Control circuit hydraulic coupling connections
Third control circuit connections
Auxiliary hydraulics connections

This Service Manual is intended for Gehl GE 383Z Excavator so as to give the owner/operator assistance in preparing, adjusting, maintaining and servicing the machine. More importantly, this manual provides an operating plan for safe and proper use of the machine. Major points of safe operation are
detailed in Chapter 2 – Safety. Read and understand the contents of this manual completely and become familiar with the machine before
attempting to operate it..

Throughout this manual, information is introduced by the word NOTE or IMPORTANT. Be sure to read the message carefully and comply with the message. Following this information will improve operating and maintenance efficiency, help to avoid breakdown and damage and extend the service life of the machine.

Gehl GE 383Z Excavator Repair Service Manual