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5.4 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.
- 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.
5.4.1 Separating the air motor from the lower pump
1) Shut off the air that is supplied to the pump to release the
internal pressure of the pump.
2) Disconnect the air connection hose, material hose, etc. from
the pump.
3) Remove the pump from the equipment and discharge the oil
remaining in the suction tube. Push up the ball in the foot
valve to discharge the oil. (Fig.6)
4) Fix the air motor body of the pump on a vise.
[NOTE]
The air cylinder is easily damaged.
Do not fix it on the vise in any case.
5) Set a pipe wrench on the knurling part
of the suction tube and unscrew the
suction tube to remove the suction tube.
(Fig.7)
6) Pull out the spring pin of the piston rod
and unscrew the connecting rod to
remove it.
Then, the air motor and
the lower pump can be separated from
each other.
CAUTION
7
Fig.6
Fig.7
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