Graco Check-Mate 2100 A Series, Instructions-Parts List Manual

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Service
Reconnecting the Displacement Pump
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 ram), be sure to support
the displacement pump while it is being discon-
nected, to prevent it from falling and causing injury or
property damage. Do this by securely bracing the
pump, or by having at least two people hold it while
another disconnects it.
NOTE: On Premier models, ensure that the rod adapt-
er (102) has not loosened during maintenance. Proper
torque is necessary to prevent the rod adapter from
loosening during the pump operation.
If the rod adapter (102) has loosened during mainte-
nance, remove the adapter and apply Loctite
2760
(or equivalent) to the rod adapter and air motor piston
threads, and then torque as specified in Fig. 6.
1. Use at least two people to hold the displacement
pump while another reconnects it to the motor (see
the
CAUTION above). Orient the pump’s fluid
outlet to the air or hydraulic inlet as was noted in
step 3 under
Disconnecting the Displacement
Pump. Position the displacement pump (105) on
the tie rods (107). See Fig. 6.
2. Screw the nuts (106) onto the tie rods (107) and
torque as noted in Fig. 6.
3. Place the coupling nut (103) on the displacement
rod (1), then place the coupling collars (108) into
the nut. Loosely screw the coupling nut onto the
connecting rod adapter (102) or connecting rod
(109, Model 222940 only). Hold the adapter or
connecting rod flats with a wrench to keep it from
turning. Use an adjustable wrench to tighten the
coupling nut. Torque as noted in Fig. 6.
4. Torque the packing nut (2) to 135–169 N.m
(100–125 ft–lb).
5. Reconnect all hoses. Reconnect the ground wire if
it was disconnected. Fill the wet-cup (2) 1/3 full of
Graco Throat Seal Liquid or compatible solvent.
6. Turn on the air or hydraulic power supply. On
hydraulic pumps, open the hydraulic return line
valve
first , then the supply line valve. Run the
pump slowly to ensure that it is operating properly.