8
5.3 Disassembly and Assembly
When the pump operation becomes defective or stops, do not disassemble the pump thoughtlessly but judge the
condition carefully by referring to the item pertaining to <Troubleshooting and Corrective Measures>.
The air motor that is not brought into direct contact with the material becomes defective rarely, so it does not need to
be disassembled. If disassembly is required, ask the dealer to disassemble the air pump.
WARNING
- Gasoline is a very volatile fuel. Do not use it for cleaning the pump in any case, otherwise it may lead
to ignition or explosion.
- When disassembling and checking the pump, be sure to stop the supply air and open the outlet valve
to release the internal pressure of the pump beforehand.
5.3.1 Separating the air motor from the lower pump
1) Shut off the air that is supplied to the pump and bleed the
internal pressure of the pump.
2) Remove the high-pressure hose and the air hose from the
pump.
3) Release the 3 clasps on the top of the cabinet upward, and
take out the pump Ass’y together with the lid.
4) Unscrew the 5 bolts (on the rear side of the lid) that fix the
pump Ass’y and the lid and separate the pump Ass’y from
the lid.
5) Fix the air motor body of the pump on the vise and set a
pipe wrench on the knurling section of the suction tube of
the lower pump and unscrew it. (Fig. 10)
6) Pull out the suction tube, and the connecting stud that connects the piston rod of the air motor becomes visible.
Pull out the spring pin of the connecting section and unscrew the connecting stud or the lower pump, and the air
motor can be separated from the lower pump. (Fig. 10)
<Note>
The air cylinder is easily damaged.
Do not fix it on the vise in any case.
Fig. 10