Starting Up For A Test Run; Checking The Shaft Seal - KSB Etanorm FXV Installation & Operating Manual

6 Commissioning/Start-up/Shutdown

6.1.4 Starting up for a test run

6.1.5 Checking the shaft seal

Shaft seals are fitted prior to delivery.
Observe the instructions on dismantling (ð Section 7.4.6, Page 39) or assembly
(ð Section 7.5.3, Page 43) .
Mechanical seal The mechanical seal only leaks slightly or invisibly (as vapour) during operation.
Mechanical seals are maintenance-free.
Gland packing The gland packing must drip slightly during operation.
(approx. 20 drops per minute)
Adjusting the leakage
Prior to commissioning
ð The gland must leak after the pump has been primed.
After five minutes of
operation
The leakage can be reduced.
Excessive leakage:
Repeat steps 1 and 2 until the minimum value has been reached.
Not enough leakage:
Slightly loosen the nuts at the gland follower.
Etanorm FXV
WARNING
Non-compliance with the permissible pressure limits and temperature limits if the
pump is operated with the suction line and/or discharge line closed
Risk of injury by escaping fluid handled!
▷ Never operate the pump with the shut-off elements in the suction line and/or
discharge line closed.
▷ Only start up the pump set with the discharge-side shut-off element slightly or
fully open.
1. Set the selector switch at the control cabinet to manual operation.
2. Start up the motor.
3. Open the shut-off element in the test pipe.
CAUTION
Excessive leakage or no leakage at the gland packing
Damage to the pump!
▷ Excessive leakage: Re-tighten the gland follower until the required leakage rate
is reached.
▷ No leakage: Switch off the pump set immediately.
1. Only lightly tighten the nuts of the gland follower by hand.
2. Use a feeler gauge to verify that the gland follower is mounted centred and at a
right angle to the shaft.
WARNING
Unprotected rotating parts
Risk of personal injury!
▷ Do not touch rotating parts.
▷ When the pump is running, perform any work with utmost caution.
1. Tighten the nuts on the gland follower by 1/6 turn.
2. Monitor the leakage for another five minutes.
29 of 62