Graco Inc. 2104G Pressure Washer User Manual


 
Photo
4.
Plungers
1) Using an M11 wrench, remove
2)
Slide out the seal retainer with
the plunger retainer.
oil wick and rubber barrier
31
With a slight twisting motion,
slinger.
loosen the plunger from the
plunger rod and remove
NOTE:
The stud may remain
with the retainer when
removed. Disassemble
and screw stud into
tight.
plunger rod finger-
41
Replace O-ring and back
up
ring
51
Saturate new oil wick by soak-
6)
Install new plunger.
71
Replace plunger retainer and
81
Install new oil wick in seal re-
torque to
80
in-lb
(9
N.m).
9)
Replace barrier slinger over new
tainer.
101
Lubricate each plunger sleeve
plunger.
and carefully slide manifold onto
crankcase.
on plunger retainer.
ing
in
oil.
Seals
or
V-Packings
Photo
5,6,7
and
8.
11 Remove C-ring from seal case.
2)
Then remove the low pressure
seal from the seal case.
3)
Unscrew the seal case from the
manifold using
a
special key
wrench (801-044):
Remove the high pressure seal
and examine. Before replacing,
lubricate ID and OD of new
manifold.
highpressure seal and press into
NOTE:
A
socket and exten-
sion may be used to
pressure seal from
~.
manifold.
Install new O-ring on seal case
8
0
V
and lubricate OD-of O-ring.
9)
Lubricate each plunger sleeve 10) Torque
all
four
(4)
bolts to
240
Screw seal case into manifold.
and carefully slide manifold onto
Lubricate ID and OD of low
crankcase.
in-lb
(27
N.m).
pressure seal and press into seal
case.
Replace C-ring holding low
pressure seal in place.
NOTE:
When replacing mani-
NOTE:
Carefully study the order
of respective parts and
note position of seals to
assure proper reassembly
and operation.
fold onto plungers, ex-
treme caution should
be exercised to avoid
damage to the seals.