Graco Inc 800-654 Servicing the V-Packings, Must be purchased separately, Backflow Preventor

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 & 800–649 (2340)

For injecting harsh cleaning chemicals downstream from the pump. 800–649 is all stainless steel wetted parts.

UPSTREAM CHEMICAL INJECTOR KIT 800–257

For injecting mild cleaning chemicals upstream into the pump.

CHASSIS & WHEELS ASSEMBLY 800–719 (1026 & 1530)

Complete chassis with semi–pneumatic wheels for portability.

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 800–682

Model 800–717

Model 800–654

Engine (air–cooled, 4 cycle) 3 hp Briggs & Stratton I/C

4 hp Honda OHV

8 hp Honda OHV

Gasoline Tank Capacity	2 quarts (1.9 liter)	2.6 quarts (2.5 liter)	6.2 quarts (6 liter)
Water Pump Maximum	1000 psi (69 bar)	1500 psi (103 bar)	2300 psi (159 bar)
Working Pressure
Water Pump Maximum Flow	2.6 gpm (10 lpm)	3.0 gpm (11 lpm)	4 gpm (15 lpm)
Inlet Hose Connection	3/4” garden hose (f)	3/4” garden hose (f)	3/4” garden hose (f)
Weight	50 lb (23 kg)	50 lb (23 kg)	158 lb (70 kg)
Dimensions
Length	19” (483 mm)	19” (483 mm)	36” (914 mm)
Width	14” (356 mm)	14” (356 mm)	21” (533 mm)
Height	22” (559 mm)	22” (559 mm)	22.5” (572 mm)
Maximum Inlet Water	160_￿ F (70_￿ C)	160_￿ F (70_￿ C)	160_￿ F (70_￿ C)
Temperature
Wetted Parts
High Pressure Hose	Acrylonitrile and Buna–N cover and tube
Bypass Hose	Synthetic yarn and EPDM
Pressure Washer	Anodized aluminum, Aluminum or bronze alloys, Brass Copper, Nylon–PTFErcomposite,
(including fittings)	Ceramic, Buna–N, Cotton phenolic, 303, 304, and 316 Stainless steel, Polymide–12
	thermoplastic,PTFEr, Carbon steel, Zinc with or without yellow chromate plate
	PTFE is a registered trademark of the DuPont Company.