Distribution; Fuel Boost Pump Removal; Engine Driven Fuel Pump Removal; Engine Driven Fuel Pump Adjustment - Raytheon BEECH BARON 58P Maintenance Manual

BEECHCRAFT
BARON 588 AND BARON 58O
MAIN1ENANCE MANUAL
DISTRIBUTION MAINTENANCE PRACTICES
ENGINE DRIVEN FUEL PUMP ADJUSTMENT
FUEL BOOST PUMP REMOVAL
a.
The fuel pump is located
at
the
rear, on
the lower
right side of the
engine. Access
is gained by removing
top
I
a.
Drain and
purge the fuel
system
for the
appropriate wing.
b. Install
a
fuel
pressure gage
capable of registering
b. Make
sure
the electrical
power
to
the boost pump
in
excess
of 55 psi,
and
a
"T" fitting
on
the end of the fuel
is off.
line
running
out
from the fuel pump
to
the fuel
servo.
c.
Remove the pump
access cover on
the underside
c.
Loosen the locknut of the
adjusting
screw
located
of the
wing.
at
the
rear
of the fuel pump.
d. Disconnect the electrical leads
to
the pump.
d. Operate
the
engine with the boost pump off
at
e.
Cut
the safety wire from around the
retaining bolts
2600 rpm and
set
the adjusting
screw on
the fuel pump
so
and
remove
the bolts.
that
a
reading
of 45-55 psi is obtained.
f. Pull the pump down far
enough
to
gain
access
to
e.
Tighten
the locknut
on
the adjusting
screw.
the pump outlet line.
f.
Remove the fuel pressure gage and reinstall the
g.
Disconnect the
outlet line and
remove
the pump.
fuel line
on
the fuel
servo.
I
FUEL BOOST
PUMP INSTALLATION
NOTE
a.
Clean the gasket
contact
areas on
the fuel cell
The engine is equipped
with
a
Bendix Fuel
and the fuel pump.
Injection System.
The actual idle mixture
b.
Connect the fuel outlet line
to
the fuel boost
adjustment
is made by the
lengthening
pump.
(richening)
or
shortening (leaning)
of the linkage
c.
Using
new
gaskets, install the boost pump with
between throttle lever and idle valve lever.
the
anew on
the base of the pump
aligned with the decal
When the linkage
is adjusted
to
a
longer length,
located
on
the pump mounting bracket
(see Figure 201).
a
richer mixture is
provided. When the linkage is
Torque the bolts
to 45 to 55 inch-pounds and install
safety
shortened,
a
leaner mixture is
provided. When
wire.
the linkage is shortened,
a
leaner mixture is
d. Connect electrical leads
to
the pump.
provided. In the
event
that the linkage
must
be
e.
Install the pump
access
plate
on
the underside of
removed
to
readjust the
length, the idle valve
the wing.
screw
should be loosened and the idle valve
assembly pulled
out
slightly. This will
prevent
bending
of the linkage stud
by providing
ENGINE DRIVEN FUEL PUMP REMOVAL
clearance between the
body casting and lever.
I
For detailed
information,
see
the Bendix RSA-
a.
Access
to
the engine-driven fuel pump is
gained
7A1
Manual, Form 15-596.
by removing the upper cowl.
b. The fuel pump is located
at
the
rear,
on
the lower
right side of the
engine.
FUEL SELECTOR
VALVE REMOVAL
c.
Disconnect the fuel inlet, fuel
outlet, and drain
plumbing
from the pump. Remove the fuel pump heat
a.
Drain the fuel
system.
shield,
b. Place the aircraft
on
jacks and
partially retract
the
d. Remove
the pump retaining
nuts
and
remove
the
gear until the inboard main gear door
is
fully extended.
pump.
c.
Remove the selector control cable.
(Refer
to
FUEL SELECTOR VALVE CONTROL CABLE
REMOVAL.)
d. Remove the fuel selector valve
plumbing.
ENGINE DRIVEN FUEL PUMP
/NSTALUITION
e.
Remove
the bolts securing the
selector
valve
to
the mounting bracket.
a.
Install the fuel pump with
arrow
pointing ah
to
align
with
arrow on
engine.
b. Connect
fuel inlet, fuel
outlet, and drain plumbing
on
the pump. FUEL SELECTOR
VALVE INSTALLATION
c.
Install the fuel pump heat shield.
d. Install upper cowl.
a.
Position
selector valve
on
the
mounting bracket
2&20´•00
p~
201
A1B
Oct 6/83