Repair - Graco Merkur W10CAS Assembly

Repair

General Information
• Reference numbers and letters in parentheses in
the text refer to the callouts in the figures and the
parts drawing.
• Always use Genuine Graco Parts and Accessories,
available from your Graco distributor. If you supply
your own accessories, be sure they are adequately
sized and pressure rated for your system.
Disconnect the Displacement
Pump
1. Stop the pump in the middle of the stroke.
2. Flush the pump, if possible. (See page 13). Relieve
the pressure. (See page 11).
3. Disconnect the air and fluid hoses and the ground
wire (13).
4. Remove the tie rod shield (11).
5. Hold the flats of the air
motor piston rod with a
wrench. Use another
wrench to loosen the
coupling nut (9).
312794F
6. Lower the coupling nut (9) enough to remove the
coupling collars (10), and then remove the coupling
nut (9).
9
7. Pull up on TSL reservoir (7) to remove.
8. Use a hammer and
brass rod to loosen the
jam nut (4). Unscrew
the jam nut as far as
possible.
9. Unscrew the displace-
ment pump by hand
and place on work
bench.
Threads are very sharp. Use a rag to protect hands
when hand turning or carrying the pump.
ti12815a
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ti12812a
Repair
ti12813a
ti12816a
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