5.3.2
How to attach the mechanical seal
1
2
ձ
Attach the mechanical seal fastening ring
ճ
Attach the mechanical seal fastening ring
ࠉ
to the main shaft.
to the seal cover.
ղ
Attach the main shaft to the impeller.
մ
Attach the seal cover to the casing.
ࠉࠉэ
Tightening torque
㸸
27[N
㺃
m]
* Be careful not to damage the sliding surface of
* Be careful not to damage the sliding surface of
the mechanical seal.
the mechanical seal.
3
4
յ
Attach the parallel pins and set the height
շ
Lift the shaft coupling by using a crowbar to
adjusting jig (2mm) supplied with the product as
remove the height adjusting jig (2mm) set in
shown in the figure.
step
䐣
, and set the height adjusting jig (5mm)
ն
Attach the shaft coupling to the main shaft.
supplied with the product.
At this point, temporarily fix the shaft coupling,
ո
Remove the crowbar.
but do not tighten it.
*Be careful not to pinch your hands.
5
6
չ
Uniformly tighten the bolts of the shaft coupling.
э
Tightening torque
ࠉ
M12
㸸
100[N
㺃
m]
ࠉࠉࠉࠉࠉࠉࠉࠉࠉ
M16
㸸
150[N
㺃
m]
ս
Attach the shaft coupling guard to complete
պ
Manually rotate the shaft coupling to check that
the work.
the coupling is centered.
Fully prime the pump before starting.
ջ
If it is not centered, do the step
չ
again.
ռ
When centering is complete, remove the adjusting jig.
O
-ring
Height adjusting jig(2mm)
*
Uniformly tighten
Caution
If the sliding surface of the mechanical seal is scratched, the entire mechanical seal must be
replaced. Using the damaged mechanical seal may cause leakage or abnormal sound.
If any other part is scratched, perform repair painting. Otherwise, it will cause rust.
