Complete workshop & service manual with electrical wiring diagrams for Hyundai Construction Wheel Loader HL980. It's the same service manual used by dealers that guaranteed to be fully functional and intact without any missing page.

This Hyundai Construction Wheel Loader HL980 service & repair manual (including maintenance, overhaul, disassembling & assembling, adjustment, tune-up, operation, inspecting, diagnostic & troubleshooting…) is divided into different sections. Each section covers a specific component or system with detailed illustrations. A table of contents is placed at the beginning of each section. Pages are easily found by category, and each page is expandable for great detail. The printer-ready PDF documents work like a charm on all kinds of devices.

EXCERPT:
CONTENTS
SECTION 1 GENERAL
Group 1 Safety Hints - - - - - - 1-1
Group 2 Specifications - - - - - 1-10
Group 3 Operational Checkout Record Sheet - - - - - 1-21
SECTION 2 ENGINE
Group 1 Structure and Function - - - - - - 2-1
Group 2 Engine speed and Stall rpm - - - - - 2-3
SECTION 3 POWER TRAIN SYSTEM
Group 1 Structure and Function - - - - - - 3-1
Group 2 Operational Checks and Troubleshooting - - - - - 3-86
Group 3 Test and Adjustments - - - - - - 3-98
Group 4 Disassembly and Assembly - - - - - 3-100
SECTION 4 BRAKE SYSTEM
Group 1 Structure and Function - - - - - - 4-1
Group 2 Operational Checks and Troubleshooting - - - - - 4-30
Group 3 Tests and Adjustments - - - - - - 4-37
Group 4 Disassembly and assembly - - - - - - 4-39
SECTION 5 STEERING SYSTEM
Group 1 Structure and Function - - - - - - 5-1
Group 2 Operational Checks and Troubleshooting - - - - - 5-18
Group 3 Tests and Adjustments - - - - - - 5-26
Group 4 Disassembly and Assembly - - - - - 5-34
SECTION 6 WORK EQUIPMENT
Group 1 Structure and Function - - - - - - 6-1
Group 2 Operational Checks and Troubleshooting - - - - - 6-39
Group 3 Tests and Adjustments - - - - - - 6-50
Group 4 Disassembly and Assembly - - - - - 6-64
SECTION 7 ELECTRICAL SYSTEM
Group 1 Component Location - - - - - 7-1
Group 2 Electrical Circuit - - - - - 7-3
Group 3 Monitoring System - - - - - - 7-22
Group 4 Electrical Component Specification - - - - - 7-67
Group 5 Connectors - - - - - 7-74
Group 6 Troubleshooting - - - - - - 7-95
…
GROUP 3 TESTS AND ADJUSTMENTS
1. HYDRAULIC OIL CLEAN UP PROCEDURE USING PORTABLE FILTER CADDY
Service equipment and tool
·Portable filter caddy
·Two 4000 mm × 1in 100R1 Hoses
·Quick disconnect fittings.
·Discharge wand
·Various size fittings.
Brake system uses oil from hydraulic oil tank. Flush all lines in the brake, pilot, steering system and cut off system.
Disassemble and clean major components for brake and steering system. Remove and clean pilot caps from main control valve.
Brake and steering components may fail if brake and steering system is not cleaned after hydraulic oil tank contamination.
If hydraulic system is contaminated due to a major component failure, remove and disassemble steering cylinders to clean debris from cylinders.
Install a new return filter element. Inspect filter housing before installing new element.
For a failure that creates a lot of debris, remove access cover from hydraulic oil
tank. Drain and clean hydraulic oil tank of fill the specified oil to hydraulic oil tank through upper cover.
To minimize oil loss, pull a vacuum in hydraulic oil tank using a vacuum pump.
Connect filter caddy suction line to drain port at bottom of hydraulic oil tank using connector. Check to be sure debris has not closed drain port.
Put filter caddy discharge line into hydraulic oil tank filler hole so end is as far away from drain port as possible to obtain a thorough cleaning of oil.
…