Clarke Fire Pump Diesel Engine JU6H-UF58

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

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

Let the engine warm-up. Loosen the jam nut(s) (Figure #38)

While observing the instrument panel tach 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

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

Warning: Ensure the engine is warm before starting the procedure

Stop the engine and remove the sump drain plug

Tighten the plug to 34 Nm (25lbf-ft) / 3.5 kgf-m

Sump filled to the ‘FULL” mark on the dipstick with new and clean lubricating oil?

Return the unit back into service by returning the AEC selector to “automatic” position and the manual operating lever to manual stop position