IWAKI EWN -B16 TC, Instruction Manual

Page: 87 / 116

87
M
ai
nt
e
na
nc
e
NOTE
• Fit the retainer to the diaphragm with its round edge
to the diaphragm.
• Check that the bracket spacer is in place. Refit the
bracket spacer into the bracket, combining mating
parts as necessary.
• The B/C-31 & -36 types do not have a bracket
spacer.
Screw the new diaphragm into the plunger as far as it will go.
Run the pump and set the stroke length to 100%. Then stop the
pump.
Mount the pump head.
Tighten the pump head fixing bolts evenly to the following torque in
diagonal order.
Tightening torque
Model code Torque Bolts
EWN-B
09
/-B11/-B16/-B21 2.16 N•m M4 Hex. socket head bolt
EWN-B31 2.55 N•m M4 Hex. socket head bolt
EWN-C16/-C21 2.16 N•m M4 Hex. socket head bolt
EWN-C31 2.55 N•m M4 Hex. socket head bolt
EWN-C36 2.55 N•m M5 Hex. socket head bolt
*A hexagon wrench can be used for a torque wrench. See page 38.
Bracket
Bracket
spacer
6
7
8
Mating parts
Wear part replacement