9
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
242 or
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.
