Service And Maintenance - 500 Hrs - Northern Lights M50C13 Operator's Manual

500 HOUR MAINTENANCE
The following service steps are to be performed every 500
hours at minimum to ensure proper performance.
SP 14. Check air intake hoses, connections and system
Make a thorough visual inspection of all hoses,
connectors and any other pieces that could exhibit wear.
Look for signs of decay, corrosion or other ways that
hoses and connection can be compromised. Replace any
worn items prior to starting the generator set.
SP 15. Replace Fuel Filter
CAUTION
!
Escaping fluid under
pressure can penetrate the
skin causing serious injury. Relieve pressure before
disconnecting fuel or other lines.
Tighten all connections before applying pressure.
Keep hands and body away from pinholes and nozzles
which eject fluids under high pressure.
Use a piece of cardboard or paper to search for leaks.
Do not use your hand.
1. Close fuel shut-off valve at bottom of fuel tank
2. Clean entire area surrounding fuel filter assembly to
keep debris from entering fuel system.
3. Loosen drain plug and air vent screw. Drain fuel into
suitable container.
Location of drain (A), filter/filter housing (B) and filter base
(C)- M50C13, M65C13, M99C13
Service and Maintenance - 500 Hour
OM-C3 11/21
36
4. Firmly grasp the filter or filer housing and rotate it
clockwise 1/4 turn (when viewed from the top to
remove from base.
5. Inspect filter mounting base for cleanliness. Clean as
required.
NOTE: Raised locators on fuel filter canister must be
indexed properly with slots in mounting base for correct
installation.
6. Install new filter element onto mounting base. Be sure
element is properly indexed and firmly seated on base.
It may be necessary to rotate filter for correct
alignment. If equipped with a water separator bowl,
remove separator bowl from filter element. Drain and
clean separator bowl. Dry with compressed air. Install
bowl onto new filter element. Tighten securely.
7. Align keys on filter element with slots in filter base.
8. Install retaining ring onto mounting base making
certain dust seal is in place on filter base. Hand tighten
ring (about 1/3 turn) until it "snaps" into the detent.
DO NOT overtighten retaining ring.
NOTE: The proper installation is indicated when a "click"
is heard and a release of the retaining ring is felt. A plug
is provided with the new element for plugging the used
element.
9. Open fuel shut-off valve. Whenever the fuel system
has been opened up for service (lines disconnected or
filters removed), it will be necessary to bleed air from
the system. (See BLEEDING THE FUEL SYSTEM on
Page 63)
Location of drain (A), filter/filter housing (B) and filter base
(C) - M150C13