Product Manual A

Operation
46 MTP4000-6000DZV/DZD Operating Manual 31609 A
kPa) of mercury or more. If it does not, check for air leaks at the suction piping gaskets.
BEARING TEMPERATURE CHECK
Bearings normally run at higher than ambient temperatures because of heat generated by friction. Temperatures up
to 160ºF (71ºC) are considered normal for bearings, and they can operate safely to at least 180ºF (82ºC). Measure
the bearing temperature with a contact-type thermometer.
STOPPING THE UNIT
1. Allow the engine to idle briefly before switching the key switch to the OFF position.
Do not use the emergency stop switch unless absolutely necessary. Stopping the pump
suddenly may cause shock waves to be transmitted back to the pump volute, causing pump
damage. To activate the emergency stop switch, push the red button in. To deactivate the
switch, pull the button out.
2. The unit is adequately prepared for outside storage. Refer to “Mechanical Seal” on page 58 for extended
storage suggestions.
If the unit is to remain idle during below freezing conditions, drain the pump to prevent
damage from freezing. Also, clean out any solids by flushing with a hose.
AUTOMATIC SHUTDOWN
The unit is equipped with a low oil pressure and a high temperature automatic shutdown system. This system will
automatically shut off the fuel supply to stop the engine if oil pressure drops too low or the engine exceeds normal
operating temperature. Return the key switch to the OFF position to reset the controller; restart the engine after you
have determined the cause of the shutdown. Refer to “Engine Fault Shutdown Troubleshooting” on page 72 for more
information.
EMERGENCY STOP SWITCH
The unit is equipped with one emergency stop switch. For location of the emergency
stop switch, refer to “Component Locations” on page 11. The red button is clearly
labeled “EMERGENCY STOP.”
Activate the emergency stop switch by pushing the button in until it locks down. This
opens the fuel circuit, shutting down the engine. The switch will remain locked until it
is pulled out.
Figure 17 - Emergency
Stop Switch
CAUTION
Do not use the emergency stop switch unless absolutely necessary. Stopping the pump
suddenly may cause shock waves to be transmitted back to the pump volute, causing pump
damage.
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