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SERVICE MANUAL
AX20 SERIES FORKLIFT TRUCKS
Federal Environmental Protection Agency (EPA) Emission-Control Compliant
S/N 670001A~
AX20
Read and observe all warnings on this unit
before operating it.
DO NOT operate this equipment unless all
factory-installed guards and shields are properly
secured in place.
ISSUED: DECEMBER 2007
WARNING
FG15/18ST(LS)-17
FG15HC-17
FG15/18HT(LS)-17
Komatsu Forklift USA, Inc.
SM123
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Summary of Contents for Komatsu AX20 Series
- Page 1 SM123 SERVICE MANUAL AX20 SERIES FORKLIFT TRUCKS Federal Environmental Protection Agency (EPA) Emission-Control Compliant S/N 670001A~ FG15/18ST(LS)-17 FG15HC-17 FG15/18HT(LS)-17 AX20 WARNING Read and observe all warnings on this unit before operating it. DO NOT operate this equipment unless all factory-installed guards and shields are properly secured in place.
- Page 2 Neither Komatsu Forklift USA, Inc., nor its parent company nor any of its subsidiaries will be held responsible for damages due to misuse or inappropriate use of its products.
- Page 3 CONTENTS Page No. INTRODUCTION ..............7 APPLICABLE AX20 “EPA”...
- Page 4 INSPECT AIR CLEANER ASSEMBLY ........5-2 5.3.1 Cleaning the Filter Element.
- Page 5 6.4.1 Checking TORQFLOW Transmission Fluid Level......6-6 6.4.2 Changing TORQFLOW Transmission Fluid and Cleaning the Strainer ..6-6 CHANGE OIL IN HYDRAULIC TANK .
- Page 6 7.22.1 Disassemble Torqflow Transmission Oil Pump......7-84 7.22.2 Assemble Torqflow Transmission Oil Pump ......7-84 7.22.3 Remove Counter Shaft .
- Page 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-...
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Page 8: Engine Serial Number Location
ENGINE SERIAL NUMBER LOCATION The K21/K25 engine serial number is stamped on an angled and machined pad on the right side of the engine 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. - Page 9 APPLICABLE AX20 “EPA” LIFT TRUCK MODELS Model Description FG15HC-17 3,000 lb. capacity, K21 Engine, Clutch Spec, Pneumatic Tire FG15HT-17 3,000 lb. capacity, K21 Engine, Torqflow Spec, Pneumatic Tire FG15HTLS-17 3,000 lb. capacity, K21 Engine, Torqflow Spec, LP Special, Pneumatic Tire FG15ST-17 3,000 lb.
- Page 10 NOTES...
- Page 11 FEDERAL EPA EMISSION CONTROL STATEMENTS OFF-ROAD LSI (NON-DIESEL) ENGINES (K21 AND K25 ENGINES) This section presents information concerning the correct 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.
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Page 12: Your Warranty Rights And Obligations
All off-road large spark-ignition (LSI) engines must be designed, built and equipped to meet the Federal EPA’s stringent anti-smog standards. Komatsu Forklift USA, Inc. (“KFI”) must warrant the emission control system on your engine for the periods of time listed below provided there has been no abuse, damage, neglect or improper maintenance of your engine. - Page 13 EMISSION CONTROL WARRANTY – 36 MONTHS OR 2,500 HOURS FOR GENERAL PARTS For the first 2,500 operating hours, or for a period of thirty-six months from the date of the first use by the original purchaser from an Authorized Komatsu Forklift Dealer, whichever occurs first, KFI warrants the following emission-related parts: •...
- Page 14 NOTES:...