n
28
11
Spare Parts
Appropriate spare parts are necessary to ensure continuous pump operation. Expendable parts, such as
bearings, spindles and mouth (thrust) ring should always be kept on hand. Consult your distributor or Iwaki
Walchem for the correct part number and pricing. When placing orders, supply the following information.
1. Description and item number (according to this instruction manual).
2. Pump model number and serial number (as shown on the nameplate of the pump).
3. Drawing number if you have received a certified drawing.
Front Casing Bolt
Pump Model
Torque
lbf.in (kgf-cm)
MDH-(F)400/401
104 (120)
MDH-(F)422/423/425 130 (150)
9. Tighten front casing bolts diagonally to avoid uneven tightening. See chart below.
10. To avoid damaging the pump: Before starting, check with a screwdriver that motor-fan rotates smoothly/
freely.
