Kohler Command PRO ECH630 Service Manual page 99

Explosive Fuel can cause fi res and
severe burns.
Fuel systems ALWAYS remains under
HIGH PRESSURE.
Fuel Fire and Burns!
Wrap a shop towel completely around the fuel pump module
connector. Press the release butt on(s) and slowly pull the
connector away from the fuel pump module allowing the shop
towel to absorb any residual fuel in the high pressure fuel line.
Any spilled fuel must be completely wiped up immediately.
Pulse Style Pumps
1. Disconnect the fuel line at the in-line fuel fi lter on
the tank to pulse pump line. See Figure 8-16.
Figure 8-16. Fuel Inlet Line Location.
2. Disconnect the pulse (vacuum) line from the
crankcase. See Figure 8-17.
Figure 8-17. Disconnecting Pulse Line from
Crankcase.
WARNING
Pulse Pulse
Pump Pump
Inlet Fuel Line Inlet Fuel Line
In-Line Filter In-Line Filter
(Tank to Pulse (Tank to Pulse
Pump) Pump)
3. Remove the two hex fl ange screws securing the
fuel pump to the bracket on the blower housing.
See Figure 8-18
Mounting Mounting
Screws Screws
Figure 8-18. Fuel Pump Mounting Screw Locations.
4. Note or mark the orientation of the fuel pump,
then remove the fuel pump with lines att ached.
Mechanical Style Pumps
The mechanical style fuel pump is part of the valve
cover assembly. See Figure 8-19.
Figure 8-19. Mechanical Style Fuel Pump.
1. Disconnect the fuel lines at the pump outlet and
the in-line fuel fi lter. See Figure 8-19.
2. The fuel pump will be removed with the
valve cover. Refer to the valve cover removal
procedure.
Remove Fuel Pump Module
1. Remove the three screws securing the fuel pump
module.
2. Using a side cutt er or similar tool, cut the Oetiker
clamp to remove the inlet fuel line. A new Oetiker
clamp will need to be used for reassembly. See
Figure 8-20.
Section 8
Disassembly
Pulse Pump Pulse Pump
Bracket Bracket
Pump Pump
Outlet Outlet
8
Pump Pump
Assembly Assembly
Pump Pump
Inlet Inlet
8.5