308147
17
Service
Required Tools
D
Set of socket wrenches
D
Set of adjustable wrenches
D
24 in. adjustable wrench
D
Torque wrench
D
Rubber mallet
D
Arbor press
D
Soft wooden block (approx. 1 square foot in size)
D
Large vise, with soft jaws
D
Thread lubricant
D
Anti-seize lubricant 222955
D
Loctite
R
2760
t
or equivalent
NOTE: Service Tool 109507 is available as an acces-
sory. The tool fits over the top of the displacement rod,
making it easier to apply a 24 inch adjustable wrench
or 3/4 in. drive socket when connecting or disconnect-
ing the rod from the piston assembly.
Disconnecting the Displacement Pump
WARNING
To reduce the risk of serious injury whenever you
are instructed to relieve pressure, always follow the
Pressure Relief Procedure on page 12.
1.
Flush the pump, if possible. Stop the pump at the
bottom of its stroke. Relieve the pressure.
2.
Disconnect the air or hydraulic hose. Plug all
hydraulic hoses immediately, to prevent contami-
nation of the hydraulic system. Hold the fluid outlet
fitting (4) with a wrench to keep it from being
loosened while you disconnect the fluid hose.
WARNING
For Model 222939 Premier Pump, do not lift the
pump by the lift ring when the total weight exceeds
550 lb (250 kg).
3.
Disconnect the displacement pump (105) from the
motor (101) as follows. Be sure to note the relative
position of the pump’s fluid outlet to the air or
hydraulic inlet of the motor. If the motor does not
require servicing, leave it attached to its mounting.
CAUTION
Be sure to use at least two people when lifting,
moving, or disconnecting the pump. This pump is too
heavy for one person. If you are disconnecting the
displacement pump from a motor which is still
mounted (for example, on a wall bracket), be sure to
support the displacement pump while it is being
disconnected, to prevent it from falling and causing
injury or property damage. Do this by securely brac-
ing the pump, or by having at least two people hold it
while another disconnects it.
4.
Using adjustable wrenches, unscrew the coupling
nut (103) from the connecting rod adapter (102).
Remove the coupling collars (108). Take care not
to lose or drop them. See Fig. 6.
5.
Hold the tie rod flats with a wrench to keep the
rods from turning. Unscrew the nuts (106) from the
tie rods (107). Carefully remove the displacement
pump (105) from the motor (101).
6.
Refer to page 20 for displacement pump service.
To service the air or hydraulic motor, refer to the
separate motor manual, supplied.
