Graco Inc. Hydra-Clean 800-681 - Manual (Page 19)

19 308-525
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.
CAUTION
Install the parts in the proper order and facing the
correct direction. Improperly installed parts will
cause a malfunction.
7. Reassemble the manifold as instructed in Servicing
the Plungers.
ACCESSORIES
(Must be purchased separately)
DOWNSTREAM CHEMICAL INJECTOR KIT
800–117 (3540)
800–649 (3540 & 4043)
For injecting harsh cleaning chemicals downstream
from the pump. 800–649 is stainless steel construction.
UPSTREAM CHEMICAL INJECTOR KIT
800–257
For injecting mild cleaning chemicals upstream into the
pump.
BACKFLOW PREVENTOR 801–133
Prevent back–up of contaminated water into fresh
supply. Install upstream of pump.
WATER SANDBLASTING KIT 800–120
For abrasive cleaning of stubborn dirt and paint.
Requires a spray tip which is not included in kit (3245
uses 801–667, 4040 uses 801–600).
ANTI–FREEZE FLUSH KIT 802–327
For flushing system with 50% anti–freeze solution prior
to transporting or storing pressure washer in below
freezing temperatures.
INLET PRESSURE REGULATOR 800–258
Regulates inlet water pressure to 60 psi (4 bar)
maximum.
TECHNICAL DATA
Model 800–681 Model 800–635 Model 800–636 Model 800–637
Engine (4 cycle, air–cooled) 13 HP Honda OHV 12.5 HP Briggs &
Stratton OHV 13 HP Honda OHV 16 HP Briggs &
Stratton OHV
Battery 12 Volt, 30 AMP
250 CCA 12 Volt, 30 AMP
250 CCA 12 Volt, 30 AMP
250 CCA 12 Volt, 30 AMP
250 CCA
Gasoline Tank Capacity 2 Gallon (7.6 Liter) 6 Gallon (23 Liter) 2 Gallon (7.6 Liter) 6 Gallon (23 Liter)
Water Pump Maximum Working
Pressure 3000 psi (207 bar) 3500 psi (241 bar) 3500 psi (241 bar) 4000 psi (276 bar)
Water Pump Maximum Flow 5 gpm (19 lpm) 4 gpm (15 lpm) 4 gpm (15 lpm) 4.25 gpm (16 lpm)
Inlet Hose Connection 3/4” garden hose (f) 3/4” garden hose (f) 3/4” garden hose (f) 3/4” garden hose (f)
Weight 255 lbs (116 kg) 255 lbs (116 kg) 255 lbs (116 kg) 255 lbs (116 kg)
Dimensions
Length
Width
Height 49” (1245 mm)
30” (762 mm)
26.5” (673 mm) 49” (1245 mm)
30” (762 mm)
26.5” (673 mm) 49” (1245 mm)
30” (762 mm)
26.5” (673 mm) 49” (1245 mm)
30” (762 mm)
26.5” (673 mm)
Maximum Inlet Water
Temperature 160
_
F (70
_
C) 160
_
F (70
_
C) 160
_
F (70
_
C) 160
_
F (70
_
C)
Wetted Parts
High Pressure Hose
Bypass Hose
Pressure Washer
(including fittings) Acrylonitrile and Buna–N cover and tube
Synthetic yarn and EPDM
Anodized aluminum, Aluminum or bronze alloys, Brass Copper, Nylon–
PTFE r
composite, Ceramic, Buna–N, Cotton phenolic, 303, 304, and 316 Stainless steel,
Polymide–12 thermoplastic,
PTFE r , Carbon steel, Zinc with or without yellow chromate
plate
r