Graco Inc. Hydra Clean 800-672 - Manual (Page 23)

23 308-523
Servicing the V–Packings
NOTE: There are two types of packing kits: one is just
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
For injecting harsh cleaning chemicals downstream
from the pump.
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.
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 800–674 Model 800–672 Model 800–671 Model 800–670
Engine
(air–cooled, 4 cycle)
Gasoline Tank Capacity
Water Pump Maximum
Working Pressure
Water Pump Maximum Flow
Inlet Hose Connection
Weight
Dimensions
Length
Width
Height
Maximum Inlet Water
Temperature
Wetted Parts
High Pressure Hose
Bypass Hose
Pressure Washer
(including fittings)
5 hp Briggs & 5 hp Honda OHV 8 hp Briggs & 8 hp Honda OHV
Stratton I/C Stratton I/C
3 quarts (2.8 liter) 3.8 quarts (3.6 liter) 6 quarts (5.7 liter) 6.2 quarts (6 liter)
1500 psi (103 bar) 1500 psi (103 bar) 2000 psi (138 bar) 2000 psi (138 bar)
3.5 gpm (13 lpm) 3.5 gpm (13 lpm) 4 gpm (15 lpm) 4 gpm (15 lpm)
3/4” garden hose (f) 3/4” garden hose (f) 3/4” garden hose (f) 3/4” garden hose (f)
105 lb (48 kg) 105 lb (48 kg) 152 lb (68 kg) 158 lb (70 kg)
37” (940 mm) 37” (940 mm) 36” (914 mm) 36” (914 mm)
19” (483 mm) 19” (483 mm) 21” (533 mm) 21” (533 mm)
20” (508 mm) 20” (508 mm) 22.5” (572 mm) 22.5” (572 mm)
160 _ F (70 _ C) 160 _ F (70 _ C) 160 _ F (70 _ C) 160 _ F (70 _ C)
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