Name: Link-Belt 4300 Service Manual — Wiring Diagrams
Author: Link-Belt

How a 4300's travel motor comes apart, and in what order it goes back together, is settled in one document: the 208-page Link-Belt 4300 service manual PDF, factory book No. 0896, covering the 4300 hydraulic excavator in both standard and Quantum series versions. Hydraulic system schematics sit beside electrical schematics for the heavy lift and power boost configurations, wiring diagrams and connector color codes included. Recondition procedures carry the main pump, pilot pump, travel and swing motors, main control valve, and the boom, arm, and bucket cylinders from disassembly through cleaning and inspection to final assembly. Torque the lower roller capscrews to 384-448 ft-lb (521-608 Nm) and the rotating joint lock bar capscrews to 181-214 ft-lb (245-290 Nm). Some days it's just you, the machine, and nobody left to ask. Bookmarked with a live text layer, this PDF puts swing motor troubleshooting two clicks from the cover; your answer is on screen before the wrench comes out.

What's Inside This Manual

System	Pages	Key Topics
Lower Mechanism	5-32	Travel Motor and Reduction Gears, Take-Up Roller, Upper Rollers, Lower Rollers, Recoil Spring, Track Assembly
Upper Mechanism	33-36	Swing Motor and Reduction Gears
Engine	37-40	Throttle Motor
Hydraulic Equipment and Lines	41-54	Hydraulic System Schematic Diagram, Hydraulic Pump, Pilot Pump, Hydraulic System Cleaning Procedure, Rotating Joint
Controls	55-64	Joystick Control Valve, Travel/Service Control Valve, Main Control Valve
Attachment	65-76	Boom Cylinder, Arm Cylinder, Bucket Cylinder
Electric Parts	77-86	Electrical System Schematic Diagram with Heavy Lift, Electrical System Schematic Diagram with Power Boost, Monitor System Controller
Name Plates and Accessories	87-94	Capscrew Torques, Spare Pump
Spare Pump Recondition	95-104	Spare Pump Disassembly, Spare Pump Assembly, Shaft Seal Replacement, Troubleshooting Chart
Pilot Pump Recondition	105-108	Pilot Pump Disassembly, Pilot Pump Assembly, Shaft Seal Replacement
Hydraulic Pump Recondition	109-136	Hydraulic Pump Disassembly, Control Section Disassembly, Directional Control Valve Removal, Regulator Cover Disassembly, Rotary Group Removal, Central Gear Section Assembly
Travel Motor Recondition	137-144	Travel Motor Disassembly, Travel Motor Assembly, Travel Motor Reduction Gears Disassembly, Travel Motor Reduction Gears Assembly
Swing Motor Recondition	145-152	Swing Motor Disassembly, Swing Motor Assembly, Swing Motor Troubleshooting
Swing Reduction Gears Recondition	153-158	Swing Reduction Gears Disassembly, Swing Reduction Gears Assembly
Main Control Valve Recondition	159-168	Main Control Valve Disassembly, Main Control Valve Assembly, Cleaning and Inspection
Cylinder Recondition (Boom, Arm, Bucket)	169-180	Boom Cylinder Recondition, Arm Cylinder Recondition, Bucket Cylinder Recondition, Cylinder Disassembly, Cylinder Assembly
Joystick Control Valve, Recondition	181-184	Joystick Control Valve Assembly, Disassembly, Cleaning and Inspection, Assembly
Travel/Service Valve Control Valve, Recondition	185-186	Travel/Service Valve Control Valve, Disassembly, Cleaning and Inspection, Assembly
Rotating Joint, Recondition	187-188	Rotating Joint Assembly, Disassembly, Cleaning and Inspection, Assembly
Spool Solenoid Valve Assembly, Recondition	189-190	8 Spool Solenoid Valve, Disassembly, Cleaning and Inspection, Assembly
Electrical System Schematics	191-208	Electrical System Schematic Diagram, Heavy Lift, Power Boost, Wiring Diagrams, Connector Color Codes

Quick Reference Specifications

Specification	Value	Page
Upper roller capscrews torque	197-230 ft-lb (267-312 Nm)	p. 20
Lower roller capscrews torque	384-448 ft-lb (521-608 Nm)	p. 22
Hydraulic pump mounting capscrews torque	46-54 ft-lb (63-73 Nm)	p. 51
Rotating joint lock bar capscrews torque	181-214 ft-lb (245-290 Nm)	p. 50
Pilot pump mounting capscrews torque	21-26 ft-lb (28-35 Nm)	p. 46
Grade 8 1/4 inch Dry Torque	13-15 ft-lb	p. 89
Metric Class 8.8 (Zinc Plated) M5 Dry Torque	7-9 ft-lb	p. 90
Capscrew (9) torque	80 ft-lb (108 Nm)	p. 107
Capscrews (2) torque	73-87 ft-lb (98-118 Nm)	p. 140
Capscrews (29,49) torque	73-87 ft-lb (98-118 Nm)	p. 140
Capscrews (53) torque	394-532 ft-lb (534-721 Nm)	p. 148
Capscrews (44) torque	7-10 ft-lb (9-14 Nm)	p. 148

Brand	Link-Belt
Model	4300, 4300 Quantum
Machine Type	Hydraulic Excavator
Manual Type	Service Manual
Language	English
Format	Searchable PDF (Digital Download)
Pages	208
File Size	26 MB
Manual No.	0896
Serial Range	LE2
Wiring Diagrams	Yes
Hydraulic Schematics	Yes
Torque Specifications	Yes
Bookmarked / Indexed	Yes

Link-Belt 4300 Service Manual — Wiring Diagrams

What's Inside This Manual

Quick Reference Specifications

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