Clarke Fire Pump Diesel Engine JU6H-LP50

Put a tray under the filter to retain spilt lubricating oil

Remove the filter with a strap wrench or similar tool. Then dispose of the filter properly (Ref Figure #30)

Add clean engine lubricating oil to the new filter. Allow the oil enough time to pass through the filter element

Lubricate the top of the filter seal with clean engine lubricating oil

Fit the new filter and tighten it by hand only. Do not use a strap wrench

Ensure that there is lubricating oil in the sump. On turbocharged engines, ensure that the engine will not start and operate the starter motor until oil pressure is obtained

Operate the engine and check for leakage from the filter. When the engine has cooled, check the oil level on the dipstick and put more oil into the sump, if necessary

NOTE: The following Routine Maintenance schedule is based on an engine usage rate not exceeding 2 hours per month. For UL/FM engine models, also refer to NFPA25

While the engine is running inspect exhaust pipe outlet outside of the pump room itself for environmental hazards such as excessive smoke conditions. The following could be used as a guide for general engine operating conditions

• Set main pump controller to “OFF” while servicing engine. Before turning the main pump controller to the OFF" position

• Also, alert the local fire department in the event that the main pump controller is connected by silent alarm to headquarters

• When servicing is complete, return main pump controller selector to Automatic" position and the mode selector on the engine to “Automatic” position. Advise the appropriate personnel the engine has been returned to the “Automatic”"

Sign off on the weekly engine check

NOTE: The following Routine Maintenance schedule is based on an engine usage rate not exceeding 2 hours per month. For UL/FM engine models, also refer to NFPA25

Set main pump controller to “OFF” while servicing engine. Before turning the main pump controller to the OFF" position

Also, alert the local fire department in the event that the main pump controller is connected by silent alarm to headquarters

When servicing is complete, return main pump controller selector to Automatic" position and the mode selector on the engine to “Automatic” position. Advise the appropriate personnel the engine has been returned to the “Automatic”"

Sign off on the engine maintenance

NOTE: The following Routine Maintenance schedule is based on an engine usage rate not exceeding 2 hours per month. For UL/FM engine models, also refer to NFPA25

• Set main pump controller to “OFF” while servicing engine. Before turning the main pump controller to the "OFF" position, check with the maintenance and security supervisors to verify that all the departments concerned will be alerted of the temporary interruption of their fire protection equipment for normal maintenance or testing

• Also, alert the local fire department in the event that the main pump controller is connected by silent alarm to headquarters

Start the engine by following the “To Start Engine” Procedure in this manual

Loosen the jam nut(s) (Figure #38)

Enter the RPM reading from the instrument panel

Rotate the long adjustor clockwise to lower the RPM and counter clockwise to raise the RPM’s until desired speed is obtained. Ref. Figure #38

Holding secure the long adjustor with a wrench tighten the jam nut

Stop engine by following “To Stop Engine” Procedure in this manual

Sign off on the engine speed adjustment