Proheat A4 - Manual (Page 26)

PROHEAT AIR A2/A4 INSTALLATION MANUAL 2-16
Fuel Pump Installation Procedure
1. Install the fuel pump in a location away from interference such as
rubbing against vehicle frame or cab.
2. Locate the area to install the pump. A bracket may be fabricated is a
suitable horizontal surface cannot be found.
3. Observe the fuel flow arrow on the pump label - arrow should point in
the direction of the heater.
4. Place the elastic bearing over the pump.
5. Connect the fuel pump bracket over the elastic bearing, using the
required bolt and nut. Tighten the clamp onto the pump.
6. Using # 11 clamps, connect both rubber hose connectors to the fittings
(refer to figure 21).
7. Using # 9 clamps, connect the fuel lines from the tank and the heater
to the fuel pump.
8. Attach the pump to the vehicle or bracket.
9. Route wire harness from heater to the pump.
10. Connect to the pump and secure the wires.
11. The pump must be installed ± 45 degrees of vertical to prevent air
bubbles from forming (refer to figure 22).
2.9.4
PUMP
#9
#11
#9
#9
RUBBER HOSE
CONNECTORS
ELASTIC
BEARING
ELECTRICAL
CONNECTOR
FUEL PUMP
CLAMP
BOLT M6 X 30-5,6-A3P
RUBBER HOSE
CONNECTORS
FLO
W
Figure 23. Fuel Pump. Figure 22. Fuel Pump Angle.
90°
45°
MAX. FUEL PUMP ANGLE = 90°
MIN. FUEL PUMP ANGLE = 45°
FL
O
W