Komatsu AX20 Series Service Manual — Wiring Diagrams

Name: Komatsu AX20 Series Service Manual — Wiring Diagrams
Author: Komatsu

$39.99

Type: Forklift Truck

Serial: 670001A and up

248 Pages·16 MB·Searchable PDF·English·Print-Ready

✓ Wiring Diagrams
✓ Hydraulic Schematics
✓ Torque Specs
✓ Multi-Level Bookmarks (2-level navigation)

Preview Sample Pages (PDF)

A forklift parked with its mast half-stripped is not earning anyone money, and this 248-page Komatsu AX20 series service manual PDF (SM123) is how you finish the job on nine FG15 and FG18 lift truck configurations, HC and HT through ST and STLS. Wiring schematics in the appendix trace every circuit on the truck, a full hydraulic diagram maps the lift, tilt, and steering circuits, and the teardown chapters walk the Torqflow transmission, differential, wheel brakes, and power steering valve from removal through reassembly, ring gear backlash included. Check throttle position sensor 1 against its 0.6 volt released reading, then pull general hardware to 68.6 Nm (50.6 ft-lbs). Every hour you spend hunting a spec, the truck sits. Bookmarked, text-searchable, and printable, so your grease-stained copy lives on the bench while the PDF stays clean.

What's Inside This Komatsu AX20 Series Manual

System	Pages	Key Topics
Introduction	7-8	AX20 Series Forklift Trucks, Maintenance Procedures, Computerized Sensors, Diagnostic Monitors, Repair Testing and Adjustment Procedures
Applicable AX20 EPA Lift Truck Models	9-10	FG15HC-17, FG15HT-17, FG15HTLS-17, FG15ST-17, FG15STLS-17, FG18HT-17, FG18HTLS-17, FG18ST-17
Federal EPA Emission Control Statements	11-14	Identification Label, Warranty Rights and Obligations, Manufacturer Warranty Coverage, Owner Warranty Responsibilities, Emission-Related Parts
Safety	15-45	Safety Management, Safe Travel, Loading Operations, Stopping and Parking, Maintenance, Structure and Stability of the Lift Truck
General Information and Specifications	46-54	Specifications - Mast Data & Features - Indoor & Outdoor Trucks, Truck Data - Pneumatic Tire Lift Trucks, Truck Data - Cushion Tire Lift Trucks
Service Data	55-59	Gasoline Engine Trucks Pneumatic, Gasoline Engine Lift Trucks Cushion
Testing, Adjusting and Measuring	60-76	Adjust Ignition Timing, Adjust Spark Plug Gap, Adjust Valve Clearance, Adjust Fan Belt Tension, Measure Engine Cylinder Compression, Adjust the Parking Brake Lever
Inspection	77-95	Inspect Engine Starting Operation, Inspect Engine Running Condition, Inspect Air Cleaner Assembly (Cleaning the Filter Element)
Maintenance Operations	96-102	Lubricant List, Change Engine Oil and Filter - Gasoline/Lp Engines, Differential Case (Checking Differential Oil Level, Changing Differential Oil)
Engine Removal and Installation	103-108	Engine Removal, Engine Disassembly, Engine Installation, Motor Mounts
Transmission and Drive Axle Removal	109-112	Transmission Removal, Drive Axle Removal, Clutch/Torque Converter Removal
Clutch and Brake Master Cylinder Service	113-127	Clutch Disassembly, Clutch Assembly, Brake Master Cylinder, Bleeding Brake Lines
Steering Axle and Power Steering Valve	128-158	Steering Axle Removal, Steering Axle Disassembly, Power Steering Valve, Troubleshooting Steering
Wheel Brake and Differential Service	159-197	Wheel Brake Removal, Wheel Brake Disassembly, Differential Service, Ring Gear Backlash
Torqflow Transmission Service	198-227	Torqflow Transmission Disassembly, Control Valve, Hydraulic Circuit, Transmission Assembly
Masts	228-248	35/40/50/55/60D-Md Series 2-Stage Masts, 30/35/40/50/55/60D-Ms 2-Stage Masts, 30/35/40/50/55/60D-Mt 3-Stage Masts

Quick Reference Specifications

Specification	Value	Page
All Models
Throttle position sensor 1 (pedal released) voltage	Approx. 0.6V	p. 65
Throttle position sensor 2 (pedal depressed fully) voltage	Approx. 4.5V	p. 65
Accelerator pedal position sensor 1 voltage (at idle)	Approx. 0.6V	p. 66
Accelerator pedal position sensor 2 voltage (at idle)	Approx. 0.3V	p. 66
Tightening torque for general service	50.6 ft/lbs. (68.6Nm) (7.0 kgfm)	p. 78
Replacement interval	6 months or 1,200 hours of operation	p. 77
Air cleaner element replacement interval	Every 6 months or 1,200 hours of operation	p. 102
Camber plate Camber	0.045 in. (1.15mm)	p. 199
Camber plate Load	123.6 lbf/.035 in. (550N/0.9mm)	p. 199
Engine Oil Capacity	4.0 qts. (3.8 L)	p. 78
Pneumatic tire trucks
Hydraulic Tank Capacity (Pneumatic tire trucks)	8.2 gal (31 L)	p. 101
Cushion tire trucks
Hydraulic Tank Capacity (Cushion tire trucks)	5.8 gal (22 L)	p. 101

Brand	Komatsu
Model	FG15HC-17, FG15HT-17, FG15HTLS-17, FG15ST-17, FG15STLS-17, FG18HT-17, FG18HTLS-17, FG18ST-17, FG18STLS-17, AX20, FG15/18ST(LS)-17, FG15/18HT(LS)-17
Machine Type	Forklift Truck
Manual Type	Service Manual
Language	English
Format	Searchable PDF (Digital Download)
Pages	248
File Size	16 MB
Manual No.	SM123
Serial Range	670001A and up
Wiring Diagrams	Yes
Hydraulic Schematics	Yes
Torque Specifications	Yes
Bookmarked / Indexed	Yes

Komatsu AX20 Series Service Manual — Wiring Diagrams

What's Inside This Komatsu AX20 Series Manual

Quick Reference Specifications

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