INSTRUCTION MANUAL
P.27
PM32U
(2) Mechanical seal (upper)
(a) Lift the pump out of the pump pit by lifting procedure described above, and
stand it on the floor in a vertical position. Unplug
“
Leak check hole
”
in the
intermediate casing of the pump.
(b) If no liquid leaks from
“
Leak check hole
”
, the mechanical seal (upper) is in
satisfactory condition.
(c) If a very small quantity of any liquid leaks out, there is no practical problem.
If any liquid, in excess of 1 liter (after one year of use) leaks out, the
mechanical seal must be replaced.
(d) If much liquid is emitted, the mechanical seal or others components may be
damaged, and an overhaul is necessary.
(e) When inspection is completed, put a sheet gasket between the plug and
the boss, and tighten the plug.
Fig. 20c
Leak check hole
plug
Coolant drain hole
plug
Mechanical seal
*ICS opt.
