Maintenance
12
308360D
Maintenance
Required Tools
•
Set of adjustable wrenches
•
Large pipe wrench
•
Torque wrench
•
Rubber mallet
•
O-ring pack
•
Large vise
•
Thread lubricant
•
Thread sealant
Disconnect the Displacement
Pump
1. Follow
2. Follow the
3. Disconnect the air hose and fluid hose.
4. Disconnect the displacement pump (109) from the
motor (101).
NOTE:
Note the relative position of the pump’s fluid
outlet (U) to the air inlet (V) of the motor. If the motor
does not require servicing, leave it attached to its
mounting.
a. Using an adjustable wrench (or hammer and
punch), unscrew the coupling nut (106) from the
motor shaft (MS). Do not lose or drop the
coupling collars.
b. Hold the tie rod flats with a wrench to keep the
rods from turning. Unscrew the nuts (108) from
the tie rods (105). Carefully remove the
displacement pump (109) from the motor (101).
Connect the Displacement
Pump
1. Make sure the coupling nut (106) and the coupling
collars (107) are in place on the displacement rod.
2. Align the pump fluid outlet (U) with the motor air inlet
(V).
Position the displacement pump (109) on the tie
rods.
NOTE:
Use at least two people to hold the displacement
pump while another reconnects it to the motor.
3. Screw the nuts (108) onto the tie rods (105). Torque
the nuts to 81-89 N•m (60-66 ft-lb).
4. Screw the coupling nut onto the motor shaft (MS)
loosely. Hold the motor shaft flats with a wrench to
keep it from turning. Use an adjustable wrench to
torque the coupling nut to 196–210 N•m (145–155
ft-lb).
5. Reconnect all hoses. Reconnect the ground wire if it
was disconnected. Fill the packing nut (2) 1/3 full of
TSL or compatible solvent.
6. Turn on the air supply. Run the pump slowly to
ensure proper operation.
7. Before returning the pump to production, relieve the
pressure and torque the packing nut to 136–149
N•m (100–110 ft-lb).
To prevent injury from crushing or pinching, always
use at least two people when lifting, moving, or
disconnecting the pump. When disconnecting the
pump, be sure to securely brace the pump, or have
two people hold it while another person disconnects
it.
If the pump is on a cart, slowly tip the cart backward
until the handle rests on the ground, then disconnect
the displacement pump.
To prevent injury from crushing or pinching, always
use at least two people when lifting, moving, or
disconnecting the pump. When disconnecting the
pump, be sure to securely brace the pump, or have
two people hold it while another person disconnects
it.
If the pump is on a cart, slowly tip the cart backward
until the handle rests on the ground, then disconnect
the displacement pump.
