Graco GM 3000 Instructions-Parts List Manual page 33

Displacement Pump Repair
('
Installing
the pump
(See Fig. 24 and
25.)
1. Mount the pump on the drive housing. Tap it into
" I
..
:
. :
:
the alignment pins with a soft hammer. Tighten the
screws (17) to
50
ft-lb
(68
N.m).
4. Tighten the packing nut (102) just enough to stop
leakage, but no tighter. Fill the packing nuvwet-cup
1/3
full with Graco TSL. Push the plug
(123)
into
the wet-cup.
MOVING PARTS
HAZARD
Be sure the retaining spring (12) is firmly
in the groove all the way around, to
prevent the pin
(11)
from working loose
due to vibration. See Fig. 25.
off
due
to
the force of the pump action. These parts
If the pin works loose, it or other park could break
could be projected into the air and result in serious
connectina rod or drive housina.
injury
or
property damage, including the pump
2.
Align the hole in the rod
(107)
with the connecting
rod assembly
(IO).
Use a screwdriver to push the
retaining spring (12) up and push in the pin (11).
Push the retaining spring (12) into place around
the connecting rod.
3.
Reconnect the suction and drain hoses. Install the
front cover
(9).
On The lo-boy sprayer inspect the
damaged.
O-ring
(110).
Replace the O-ring if it is worn or
A
50
ft-lb
(68
N.m)
Toque to
6 ! k
1 7 A
Fig. 25
~
308-620 33