Multiquip st3020bcul, st3020b1 manual Operation/maintenance, Shut-Down, Cleanup, Lubrication

operation/maintenance

Shut-Down

1.Place the 3-position operation switch on the control box in the OFF position (Figure 20).

Figure 20. Manual-Off-On SW. (OFF Position)

2.Verify that the control box power ON light is OFF.

3.Remove the power from the pump by turning off the circuit breaker or switch that provides power to the pump. Remember to make sure that hands are dry (not wet), and feet are not standing in water when removing or disconnecting power from the pump.

4.Using the lifting rope, lift the pump up from its current position. Remove the discharge hose from the discharge port on the pump.

5.Remove all power cables and float switches from the control box. Place cables and float switches in a suitable container where they will not get damaged.

Cleanup

1.Wipe off any mud or debris that might have attached itself to the pump.

2.If the pump was used to pump mud, grit or silt, flush vigorously with clean water.

3.Store pump in a clean dry place away from dirt and debris.

Lubrication

To check the lubrication oil level of the mechanical seal perform the following:

Checking Lubrication Oil Level

1.Lay the pump (Figure 21) on its side with the oil plug facing upwards.

2.Using an allen wrench, remove oil fill plug.

3.Visually inspect oil plug hole to verify that oil cavity is full enough to cover seal spring.

4.When reinstalling oil fill plug, apply teflon tape to prevent leaking.

Changing Lubrication Oil

1.If lubrication oil level is low, block the oil fill opening with a finger and roll pump to one side to drain oil into a small container.

2.Use a funnel (Figure 21) and fill oil cavity with ISO VG32 lubrication oil or equivalent. Pump oil cavity capacity is 300 cc. Fill to 75-80% capacity to allow for expansion. Replace lubrication oil every 6 months (1,000 hours) or as needed.

Figure 21. Adding Lubrication Oil

page 24 — st3020b1/BCUL Sub. pump • operation and parts manual — rev. #2 (10/28/10)