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1)
Replacing diaphragms
Remove the four hexagon socket head cap screws (M6×22) ② and the pump head ①
should be removed. Remove the pump head and four cross-recessed countersunk head
screws (M5×12) ④, and remove the diaphragm keep plate ③. Replace a total of two
diaphragms ⑤, one piece each for one pump head with new ones.
Before re-assembling the diaphragm, apply a thin coat of locking agent (Locktite
the like) to the cross-recessed countersunk head screws (M5×12) ④.
2)
Replacing air filters
Remove the five cross-recessed head machine screws (M4×12) ⑦, and remove the head
cover ⑥.
Open piece each of gray air filter ⑨ is located in the head gasket ⑧ for one head total two
[four]. Remove and replace them with new ones. [DAT-100SA has two filters at the first
stages and second stages]
[
] is DAT-100SA
3)
Replacing head gaskets
Remove the five cross-recessed head machine screws (M4×12) ⑦, and remove the head
cover ⑥.
Open piece each of black head gasket ⑧ is located in the head cover for one head (total
two). Remove and replace them with new ones.
4)
Replacing suction /exhaust valves
Remove the five cross-recessed head machine screws (M4×12) ⑦, remove the head
cover ⑥ and remove the head gasket ⑧ and the air filter ⑨ should be removed.
Then remove the four hexagon socket head cap screws (M6×22) ②, and remove the
pump head ①.
Remove a cross-recessed head machine screws (M3×5) ⑩, remove pump head both
sides and replace the intake/exhaust valve ⑪, and replace with a new one.
Before reassembling the intake/exhaust valve, apply a thin coat of locking agent (Locktite
242 or the like) to the machine screws (M3×5) ⑩.
Fix the plain washer ⑫ to intake side and fix the exaust valve guard ⑬ to exhaust side.
The plain washer ⑫ places as its round corner touches intake/exhaust valve.
Similarly replace the intake/exhaust valve one side.
9
242 or
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