FUEL PUMP TESTING AND CALIBRATION (Contd)
c. Mounting Fuel Pump to Test Stand (Contd)
Lubricate tachometer drive gears in front cover to protect them from excessive wear during
Fuel pump assembly (71)
a. Mount on test stand adapter
b. Secure with four screws (72)
and washers (73).
c. Rotate main shaft so that one
lug on drive flange is located at
12 o'clock position.
Test stand coupling insert
Place into test stand drive shaft
It may be necessary to hand
coupling (11) so that one lug of
rotate drive shaft coupling (11)
insert is at 11 o'clock position
to attain this positioning of insert
and another lug is at 1 o'clock
lugs. This is to assure easy
engagement of fuel pump drive
flange lugs into test stand cou-
pling insert (74).
Clamp bar (70)
Loosen and slide fuel pump
Allow 0.0625 in. (1.5875 mm) end
assembly (71), test stand adapter
clearance between drive coupling
ring (67), and test stand adapter
on fuel pump assembly (71) and
bracket (66) on mounting rails (12)
coupling insert (74) on test stand.
until they engage with test stand
Tighten clamp bar (70) when fuel
coupling insert (74).
pump assembly (71) is properly