BURNER FUEL PUMP (continued)
Figure 90. Burner Fuel Pump-exploded View
BURNER FUEL PUMP CLEANING,
INSPECTION, AND REPAIR
e. Check the shaft for end play, one of two gaskets
(13) may be removed if excessive end play is noticed
a. Clean all parts except the packing with an
Check the shaft for free rotation and end play after
approved cleaning solvent and dry thoroughly.
removal of gaskets.
b. Inspect all parts for cracks, bends, breaks, wear,
corrosion, distortion or damaged threads.
BURNER FUEL PUMP INSTALLATION
c. Repair or replace all defective parts, and replace
a. Insert the fuel pump (3, fig. 89) into the gear
housing (11) and secure with the two setscrews (7),
Install the drain plug (8).
BURNER FUEL PUMP REASSEMBLY
b. Install the key (16, fig. 90) and the coupling (3)
on the end of the shaft (11) and secure the coupling with
a. Install the sleeve bearing (9, fig 90) and the
the setscrews (2).
impeller and shaft (11) in the housing (10).
c. Place the gear housing (11 fig. 89) and
b. Install the gear (12) on the head (14) and place
gaskets(14)ln position on the blower (5) and secure with
the head and gaskets (13) in position on the pump
the ten cap screws.
housing (10) and secure with the six cap screws (15).
d. Install the drain plug(10) in the gear housing (11)
c. Install the packing rings (7 and 8) and the
retainer (6) on the shaft (11) and push the packing rings
into position in the pump housing (10) with the retainer.
e. Install the two tube nuts (1) on the elbows(2).
d. Install the spring (5) and the packing nut (4) on
f. Operate the pump and check for leaks.
the shaft (11) and tighten the nut until the shaft will not
rotate freely. Then loosen the packing nut until the shaft