Mitsubishi Forklifts FD20HS-FG30S description of the catalogue:

Mitsubishi Forklifts Service Manuals and Wiring Diagrams

Chassis, Mast & Options
FD100N F15D-60011-up
FD120N F15D-60011-up
FD135N F15D-60011-up
FD150AN F24B-60011-up
FD160AN F39-60011-up

S4S Diesel Engine (Tier 2) Service Manual
Operation and Maintenance Manual

This manual has information about the layout and names of main components, procedures for disassembly, assembly, inspection, adjustment, maintenance, and pinpointing faults which are in effect mainly for the model FB-CA.
Since the parts used in this machine are subject to change for the sake of better quality, performance enhancement, and safety, some portions of the contents and illustrations of the "SERVICE MANUAL-Chassis & Mast-" may not be identified.

Most accident happens due to the disregard of basic safety rules or precautions. In order to prevent accidents from happening, the factors responsible for accidents must be avoided beforehand.
For this reason, please read this manual and fully understand the precautions for safety and the proper procedures and directions for inspection and maintenance before starting operation. Performing maintenance and repair without adequate knowledge may cause inadvertent accidents.

It is not possible to cover all the possible cases of accidents in this "SERVICE MANUAL-Chassis & Mast-". Therefore, attention should be given to precautions other than the ones mentioned in this "SERVICE MANUAL-Chassis & Mast-". Especially, when repair and maintenance work which are not covered in this "SERVICE MANUAL-Chassis & Mast-" are carried out, always work under the direction of an instructor who understands the matter.