A.R.North America AR620, Use And Maintenance Manual

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a
sseMBly
i
nstrUctions
P
re
-a
sseMBly
c
hecklist
1. The pressure washer should be as close as possible to the water
supply.
2. Locate the pressure washer on a solid, level surface with a gentle
slope to prevent water from building up in the work area. Excess
water can make surfaces slippery.
3. Position the unit so the operator has easy access to the pressure
washer and its controls.
4. To prevent damage and excessive hose wear, locate the pressure
washer so the hose does NOT extend across traffic areas. Make
sure there are no kinks or twists in the hose.
5. Use extension cords of at least 12-3 gauge for lengths up to
50 feet or 10-3 gauge for lengths up to 100 feet. Check the
extension cord to make sure it is not damaged or frayed. The
outlet should have an amperage rating of 20 amps or greater
and should have a Ground Fault Circuit Interrupter (GFCI).
6. Do not use the pressure washer outdoors if it is raining, and do
not spray the motor or any of its connections.
7. Do not use chemicals or agents which are not compatible with
the Buna-N and PVC (polyvinyl) or neoprene covering of the
hose.
8. Do not run acids or hard caustics through the pump.
9. Check to determine if the water supply is capable of exceeding
the output of the pump. The output of this unit is 2.1 gpm
(gallons per minute), so the water supply
must deliver at least 2.5
gpm.
Calculate gpm flow rate by running the water supply
into a pail for one minute. Measure the gallons in
the pail. If it is at least 2.5 gallons in the minute, your
supply is adequate. Your water supply must be clean
and free of debris. Use water with a temperature of
less than 140° F.
Pos. Code Description Qty.
Legend
AR620 / AR630
1 1260273 Black rear casing 1
2 1261551 Screw 8
3 180030 Screw 4
4 1260710 Black handle 1
5 1261760 Fan cowling 1
6 1264623 Black front casing 1
7 1260470 Screw 4
8 1260830 Base 2
9 1260780 Screw 4
10 1262790 Detergent hose 1
11 1341030 Suction filter 1
12 1269115 Detergent hose w/filter 1
13 1260360 Scew extension 1
14 1260300 Fan 1
15 1260970 Washer seal 1
16 1260810 Screw 1
17 1263550 Capacator 80uF 1
18 1265080 Switch gasket 1
19 1261240 Switch 1
20 1261560 Screw 4
21 1262370 Cord guide 1
22 1261410 Switch box 1
23 1260400 Switch box gasket 1
24 1269100 Ground terminal 1
25 1261820 Cord 1
26 1269090 Cord screw guide 1
27 1260950 Bearing 1
28 1260960 Motor plate 1
29 4747 Electric motor 1
30 1340280 Clamp 1
31 1260760 Screw 6
32 1269101 Rear cover 1
33 1260040 Rear cover gasket 1
34 1260480 Oil cap 1
35 1260170 Crankshaft 1
36 180400 Bearing 1
37 1260770 Circlip 1
38 1260790 Circlip 1
39 1260750 Seal 1
40 1380520 Key 1
41 1260080 Piston pin 3
42 1260070 Guiding piston 3
43 1260091 Spacer 3
44 480480 O-Ring 3
45 1260120 Piston 3
46 1260100 Piston washer 3
47 1260110 Nut 3
1260060 Con-rod (Alum.) 3
1320140 Con-rod (Bronze) 3
49 1260162 Valve plug 6
50 960160 O-Ring 6
51 1269050 Complete valve 6
52 880830 O-Ring 6
53 1262220 Pump head 1
54 1281550 Washer 6
55 680570 Screw 6
56 180101 O-Ring 1
57 820361 Plug 1
58 880530 Plug 2
59 740290 O-Ring 2
60 1260140 Gasket support ring 3
61 1260130 H.P. gasket 3
62 1260151 Piston guide 3
63 1260420 O-Ring 3
64 1260440 L.P. gasket 3
65 1260460 Seal 3
66 1260010 Pump housing 1
67 1260050 Roller bearing 1
48
Repair Kits for Pump
Pos. Qty. Pos. Qty. Pos. Qty. Pos. Qty.
Water Seals Valves Pistons Oil Seals
Kit 1866 Kit 1864 Kit 2628 Kit 1865
60 3 51 6 43 3 33 1
61 3 52 6 44 3 39 1
63 3 45 3 65 3
64 3 46 3
47 3
Kit 2767
44 3
50 6
52 6
56 1
59 3
63 3
O-Rings
Pos. Qty.