Graco Inc. 3009 Pressure Washer User Manual


 
Servicing the V-Packings
NOTE:
There are
two
types of packing kits: one is
packings only, the other includes the
packings, rings and retainers.
1.
Remove the manifold as outlined in the Pumping
Section.
2.
Carefully pull the packing retainer from the
manifold. Examine the O-ring and replace it
if
it is
cut or damaged.
3.
Remove the v-packing and head ring.
Pull
out
the
intermediate retainer ring. Remove the second
v-packing and second head ring.
4.
Inspect all parts and replace as necessary.
5.
Thoroughly clean the packing cavities and examine
for debris
and
damage.
6.
Lightly grease the packing cavities and then
replace the packings in the following order: head
ring, v-packing, intermediate
ring,
head ring,
v-packing and packing retainer with the O-ring
installed in the retainer groove.
I
1
correct direction. Improperly installed parts will
Install the parts in the proper order and facing the
cause a malfunction.
7.
Reassemble the manifold as instructed In Servicing
the Plungers.
ACCESSORIES
(Must
be
purchased separately)
DOWNSTREAM CHEMICAL INJECTOR KIT
800-1 17 BRASS UP TO 5.5 GPM (21 LPM)
800-425 BRASS 5.6 TO
10.8
GPM (21 TO
41
supply. lnstaii upstream of pump.
LPM)
800-649 STAINLESS STEEL UP TO
5.5
GPM GUN
&
WAND ASSEMBLY
(21 LPM) 800-392
For injecting harsh cleaning chemicals downstream Includes
8WJ-350
spray gun,
32"
spray wand and quick
from the pump.
BACKFLOW PREVENTOR 801-133
Prevent back-up of contaminated water into fresh-.
couplers for hose and spray tip connections.
HOSE
ASSEMBLY WITH QUICK COUPLERS 800-398
800-375
3/8
diameterx 5ofoot x
4OOO
psi
(276
bar) permanently
coupled hose with
801
-568
and
801
-569
3/8
quick
connections
for
hose
and
'pray
tip.
Includes
803-222
stainless steel spray gun,
32
stainless steel spray wand and stainless steel threaded
couplers.
308-535
17