IWAKI PUMPS MXM Series, Инструкция по эксплуатации

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Maintenance
■ Wear limits of bearing and spindle
* If the clearance between the inner diameter of the bearing and the outer diameter of the spindle exceeds 1
mm, either the bearing or spindle, whichever has greater wear, should be replaced regardless of the wear
limit. For the ceramic bearing (FF) type, replace the bearing and spindle at the same time.
* Sliding parts may suffer initial wear in an initial operation phase. Note that this is not abnormal.
Model
MXM220/ 221/ 441/ 442 MXM542/ 543/ 545
Before use Wear limit Before use Wear limit
Inner diameter of bearing
18mm 19mm 24mm 25mm
Outer diameter of spindle
18mm 17mm 24mm 23mm
See page 33 for baring replacement.
See page 31 for spindle replacement.
■ Wear limit of mouth ring
The mouth ring is 2 mm forward from the impeller when shipped. Before the step has reduced to 0 mm,
replace the mouth ring with new one.
Model MXM220/ 221/ 441/ 442/ 542/ 543/ 545
Before use
7.5mm
Wear limit
5.5mm
Mouth ring replacement
1. Heat the lugs on the mouth ring by a plastic
welder or industrial dryer and open the lugs up to
remove the mouth ring.
2. Heat the lugs on the mouth ring by a plastic
welder or industrial dryer and then close the lugs
down.
Before use
2mm
Impeller
Mouth ring