Perkins Engine; Rpm Adjustment; Flex Plate - Genie S-60 Service Manual

Third Edition • First Printing
7-1

RPM Adjustment

Refer to Maintenance Procedures, B-6,
Check and Adjust the Engine RPM.
7-2

Flex Plate

The flex plate acts as a coupler between the
engine and the pump. It is bolted to the engine
flywheel and has a splined center to drive
the pump.
a
a pump
b pump shaft
c coupler
d flex plate with raised spline
e flywheel
1
f /
4
Part No. 65196
c e
d
b
f
inch (6.4 mm) gap
Genie S-60 & Genie S-65

Perkins Engine 704-30

How to Remove the Flex Plate
1 Disconnect the wiring plug at the electronic
displacement controller (EDC), located on
the drive pump.
2 Support the drive pump with an appropriate
lifting device. Then remove all of the pump
mounting plate to engine bell housing bolts.
3 Carefully pull the pump away from the engine
and secure it from moving.
4 Remove the flex plate mounting fasteners,
then remove the flex plate from the engine
flywheel.
How to Install the Flex Plate
1 Install the flex plate onto the engine flywheel
with the raised spline towards the pump.
Torque the flex plate mounting bolts to 34 ft-lbs
(46 Nm).
2 Install the pump coupler onto the pump shaft
with the set screw toward the pump. Leave a
1
/ inch (6.4 mm) gap between the pump
4
coupler and pump end plate.
3 Apply removable thread locking material to the
pump coupler set screw. Torque the set screw
to 45 ft-lbs (61 Nm).
4 Install the pump and torque the pump mounting
plate fasteners to 34 ft-lbs (46 Nm).
Section 7 • Repair Procedures
Component damage hazard.
Hoses can be damaged if they are
kinked or pinched.
Component damage hazard. Do
not force the drive pump during
installation or the flex plate teeth
may become damaged.
7 - 33