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7

INTRODUCTION

This Service Manual has been developed as an information resource to help the reader
learn about, understand, repair and maintain the AX20 Series forklift trucks, and the vari-
ous equipment, systems, inspections, sensors, diagnostic procedures and diagnostic
equipment utilized to maintain, adjust and troubleshoot these systems. Although refer-
ence is made to maintenance procedures necessary to perform servicing of this vehicle,
you should refer to the applicable 

Operation and Maintenance Manual 

for these lift trucks

for more complete maintenance information.

Komatsu is involved in a concentrated and highly technical program of designing and
developing cleaner burning, more efficient and more powerful engines for use in the
industrial truck market. As a result, new computerized sensors, systems and diagnostic
monitors have been created to make the job of maintaining and repairing these systems
simple and easy. 

Read this manual carefully, refer to it often and learn the repair, testing and adjustment
procedures to the best of your ability. Please note that some illustrations are generic and
may not look exactly like your unit in every detail.

Ensure that, when you are working on or around industrial trucks, 

Safety

 

is priority

Number One

. Read, understand and obey all 

WARNINGS

 and 

CAUTIONS

.

Follow the instructions and procedures presented in this manual when working on these
lift trucks and their systems. Damage to the equipment, and possible injury to yourself or
others, may result if these procedures are not adhered to carefully.

Keep this manual nearby and accessible for use when necessary. If this book becomes
dirty, worn or illegible, contact Komatsu for a replacement. The procedures outlined in
this manual will be updated periodically. Be sure that you have the latest revision in order
to learn the newest information available. Revision dates will be clearly displayed on the
lower left hand corner of the cover page. 

This will aid in maintaining your equipment in excellent condition and in ensuring that
these lift trucks will operate safely at maximum efficiency.

Содержание AX20 Series

Страница 1: ...l factory installed guards and shields are properly secured in place WARNING SERVICE MANUAL AX20 SERIES FORKLIFT TRUCKS Federal Environmental Protection Agency EPA Emission Control Compliant S N 67000...

Страница 2: ...ponsible for damages due to misuse or inappropriate use of its products Requests for information comments and other inquiries should be sent to Komatsu Forklift USA Inc 14481 Lochridge Blvd Bldg 2 Cov...

Страница 3: ...PLUG GAP 4 3 4 3 ADJUST VALVE CLEARANCE 4 3 4 4 ADJUST FAN BELT TENSION 4 4 4 5 MEASURE ENGINE CYLINDER COMPRESSION 4 4 4 6 ADJUST THE PARKING BRAKE LEVER 4 5 4 7 MEASURE HYDRAULIC DRIFT ON LIFT TILT...

Страница 4: ...10 5 23 INSPECT BRAKE DRUMS 5 10 5 24 INSPECT BRAKE BACKING PLATES 5 11 5 25 INSPECT LOAD FORKS 5 11 5 26 INSPECT MAST 5 11 5 27 INSPECT FORK CARRIAGE 5 12 5 28 INSPECT LIFT CHAINS 5 12 5 29 INSPECT C...

Страница 5: ...AXLE LUBRICATION AND ADJUSTMENTS 7 22 7 11 1 Steering Axle Lubrication 7 22 7 11 2 Hub Bearing Preload Adjustment 7 22 7 11 3 Toe in Specification Cushion Tire Truck 7 22 7 11 4 Turning Angle Adjustme...

Страница 6: ...MP 7 104 7 25 1 Dissassemble Hydraulic Pump 7 104 7 25 2 Replace Hydraulic Pump Seals 7 106 7 25 3 Replace Front And Rear E seal And Back up Ring 7 106 7 25 4 Replace O ring 7 107 7 25 5 Assemble Hydr...

Страница 7: ...arefully refer to it often and learn the repair testing and adjustment procedures to the best of your ability Please note that some illustrations are generic and may not look exactly like your unit in...

Страница 8: ...block in the center just beneath the valve cover The machined boss is split vertically by a groove The Engine Model number is on the left pad and the Engine Serial number is on the right pad NOTICE F...

Страница 9: ...l Pneumatic Tire FG15ST 17 3 000 lb capacity K21 Engine Torqflow Spec Cushion Tire FG15STLS 17 3 000 lb capacity K21 Engine Torqflow Spec LP Special Cushion Tire FG18HT 17 3 500 lb capacity K21 Engine...

Страница 10: ...10 NOTES...

Страница 11: ...ect labeling warranty parts and maintenance of K21 and K25 engines in order to comply with the EPA off road large spark ignition LSI engine regulations 1 LABELS REQUIRED AND LABEL LOCATIONS All K seri...

Страница 12: ...aler OWNER S WARRANTY RESPONSIBILITIES As the off road LSI engine owner you are responsible for the performance of the required maintenance listed in your Operation and Maintenance Manual KFI recommen...

Страница 13: ...RS FOR GENERAL PARTS ECM Catalytic converter Vaporizer Follow the instructions in the Operations Manual concerning any other maintenance programs not required for EPA compliance For questions and addi...

Страница 14: ...NOTES...

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