Product Manual A
Operation
42 MTP4000-6000DZV/DZD Operating Manual 31609 A
Ensure belts and couplings (shaft) are properly adjusted, aligned, and guards are in place.
Ensure all thrust blocks and supports are adequate.
Ensure all electrical connections and electrical equipment are installed by a qualified and licensed
electrical contractor.
Never operate electric motors or pump equipment without all protective covers, screens and guards
properly in place.
Ensure pump drain is closed.
Ensure the pump rotates freely by hand. Check the pump rotational direction with very short on/off
power pulses on the starter switch.
CAUTION
Improper pump shaft rotation will cause failure and costly repairs.
Check the valves for proper position. If connecting to a system that has a discharge gate valve, start
with the valve closed. The speed of opening depends upon the size and length of the discharge pipe
and capacity of the pump. The valve should not be more than .25 in. (6.35 mm) open until the line is
filled. This will reduce the possibility of a water hammer of shock if filling is too rapid.
Ensure all hose couplings, covers and plugs are tight.
Check the oil level in the mechanical seal oil reservoir bottle. Do not allow the bottle to run dry.
For diaphragm vacuum pumps: Check the oil level in the sight glass located at the base of the
assembly. Add oil if necessary.
CAUTION
If oil levels are not properly maintained, damage to the pump will result.
Check lip seal vent for leakage. The bearing oil and mechanical seal oil are each sealed by a shaft lip
seal, and a vent to atmosphere exists between these two lip seals to indicate oil leaks from either
cavity. If either the bearing oil or mechanical seal oil lip seal leaks, oil will leak from the vent.
Check the engine oil level, coolant level and fuel level.
Make sure the battery is connected.
Make sure the emergency stop switch is pulled out (deactivated).
The pump is now ready for use.
STARTING THE UNIT
Before starting the unit, be sure to check the following:
1. Turn the key switch to the right RUN position. A startup screen will appear. After the startup screen is cleared,
the display will show readings on its virtual gauges. Once the gauges appear, crank the engine by turning
and holding the key switch in the start position until the engine starts. Refer to “Control Panel Operation” on
page 18 for details.
Note: Venturi prime pumps prime using the vacuum created by the air from the engine compressor flowing through
the jet pump. The vacuum of the jet pump is connected to the pump’s priming spool. With a flooded suction, use a
bleed valve at the top of the volute to allow trapped air to escape. Rotating the pump shaft will release trapped gas
in the impeller. If the pump has a float ball priming chamber connected to the priming spool, the jet pump’s vacuum
line will automatically be shut when the pump is primed.
2. The pump should self prime and begin to discharge liquid within minutes. The pump may not prime immedi-
ately because the suction line must first fill with liquid. If the pump fails to prime within five minutes, stop it
and check the suction line for leaks.
3. Refer to “Throttle Control” on page 18 for information on adjusting the pump flow. Several factors can influ-
ence pump output: