Alfa Laval Rotary Lobe Displacement Pump GHPD-422

CAUTION! DRIP LEAKAGE IS ESSENTIAL TO PREVENT OVER HEATING OF THE GLAND AREA WHICH WILL CAUSE SEAL FAILURE.

IMPORTANT! Stop and remove gland guard for checking temperature of housing and observing leakage. ALWAYS REPLACE THE GUARD BEFORE RESTARTING.

1. Lightly tighten up the gland follower.

2. Flood the pumphead and determine if the gland leakage is acceptable. Tighten the gland follower nuts until an acceptable leakage is achieved.

3. Start the pump and allow to run for 10 minutes. If the gland becomes significantly hotter than other parts of the pump, the gland is too tight.

4. Stop the pump and allow it to cool then repeat the above until the gland temperature is stable and gland slightly weeping.

5. Run the pump at 10 minute intervals tightening the gland follower nuts by a ½ of a turn until the leak is at an acceptable rate.;

– The packing rings are located within the gland housing and are tightened onto the shaft sleeve by adjusting the gland follower. On flushed packed glands a lantern ring replaces the middle ring of packing. The shaft sleeve is retained to the shaft by three socket set screws and is sealed by an 'O' ring.

1. Release and pull back the gland follower.

2. Remove the rotorcase with gland housing, packing and gland follower still assembled.

3. Loosen the shaft sleeve socket set screws and extract the sleeve from the shaft.

4. Inspect and replace the packing and shaft sleeve if necessary.

1. Lubricate the 'O'ring, locate in shaft sleeve and slide onto the shaft.

2. Tighten up the socket set screws.

• The pump can be manually cleaned or cleaned in place (C.I.P.). The following is an example of a typical CIP procedure. However specific advice for each application should be sought from the pump supplier.

1. Flush through the system with cold water (42°F).

2. Run hot caustic soda (158-176°C) at 2.5% dilution through the system for 20-30 minutes.

3. Final flush through with cold water again.

NEVER touch the pump or pipes as they will be extremely HOT!

DO NOT subject the pump to rapid temperature changes during C.I.P. procedures, as pump seizure can result from thermal shock. A suitable by-pass is recommended.

ALWAYS use rubber gloves and protective when handling caustic agents.

ALWAYS rinse will with clean water using a cleaning agent.

ALWAYS store/discharge cleaning agents in accordance with current rules d/directives.;

Warning: The pump will NOT be supplied oil filled.

First change - After 150 hours of operation.

Only use the oil/grease types recommended by your supplier.

Did you fill with oil through the filler plug to the level indicated in the sight glass?

Sign off on the oil replacement

Warning: The pump will NOT be supplied oil filled.

Enter the current hours of operation

Has the pump been operated for 150 hours?

If yes, proceed to oil replacement. If no, wait until 150 hours of operation.

Did you fill the oil through the filler plug to the level indicated in the sight glass?

Sign off on the oil replacement