29
MIT 4000 / MIT 5600 / MIT 8900
3
3A
4A
7
23
20
21
23
17
18
3 Main Body
3A
4A
23 Capscrew Soc Head M10x60
20 Srod, Diaphragm
21 Oil Seal
10 Bumper
17 Plate, Inner Diaphragm
7 Diaphragm
18 Plate, Outher Diaphragm
Double diaphragm is used with options of teon diaphragm pump. The rubber diaphragm
used before the teon increase the service life of the teon diaphragm by improving its
breakage and fatigue strength.
Relieve pressure in the pump after closing pressure air and remove the pump from air inlet line.
Drain the uid in the pump. See pump installation gures and diaphragm maintenance schemes.
Remove suction and discharge lines. Remove the ball and ball seats. Then, remove external
covers of the pump.
Dismantle of the Diaphragms
MIT 160
Remove external diaphragm fastener by turning it counter-clockwise via use of 12 socket wrench
to remove diaphragm group from diaphragm shaft. One of the diaphragm shall be removed
with internal and external diaphragm fastener and the other shall be removed in a way to be
connected to shaft. Firstly, connect the internal diaphragm fastener to clamp to remove the
diaphragm between internal and external diaphragm fastener and tighten it, and remove it by
turning it counter-clockwise via use of 12 socket wrench.
MIT 550
Remove external diaphragm fastener by turning it counter-clockwise with a 19 socket wrench to
remove diaphragm group from diaphragm shaft. One of the diaphragms shall be removed with
internal and external diaphragm fastener and the other shall be removed as connected to the
shaft. First, place the internal diaphragm fastener on a vice to remove the diaphragm between
internal and external diaphragm fastener and tighten it, and remove it by turning it counter-
clockwise with a 19 socket wrench
MIT 1500
Remove the outer diaphragm holder using the M16 wrench to remove the diaphragm assembly
from the diaphragm shaft counterclockwise. After this operation, one of the diaphragms the holder
will be removed with the other attached to the shaft. To remove the diaphragm between the inner
and outer diaphragm holder, rst tighten the inner diaphragm holder in a vise and unscrew it by
turning it anti-clockwise using the M16 wrench.