AR Blue Clean AR620 Maintenance Manual page 4

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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.
i
nstrUctions
Pos. Code Description
1 1260273 Black rear casing
2 1261551 Screw
3 180030 Screw
4 1260710 Black handle
5 1261760 Fan cowling
6 1264623 Black front casing
7 1260470 Screw
8 1260830 Base
9 1260780 Screw
10 1262790 Detergent hose
11 1341030 Suction filter
12 1269115 Detergent hose w/filter
13 1260360 Scew extension
14 1260300 Fan
15 1260970 Washer seal
16 1260810 Screw
17 1263550 Capacator 80uF
18 1265080 Switch gasket
19 1261240 Switch
20 1261560 Screw
21 1262370 Cord guide
22 1261410 Switch box
23 1260400 Switch box gasket
24 1269100 Ground terminal
25 1261820 Cord
26 1269090 Cord screw guide
27 1260950 Bearing
28 1260960 Motor plate
29 4747 Electric motor
30 1340280 Clamp
31 1260760 Screw
32 1269101 Rear cover
33 1260040 Rear cover gasket
34 1260480 Oil cap
35 1260170 Crankshaft
36 180400 Bearing
37 1260770 Circlip
38 1260790 Circlip
39 1260750 Seal
40 1380520 Key
41 1260080 Piston pin
42 1260070 Guiding piston
43 1260091 Spacer
44 480480 O-Ring
45 1260120 Piston
46 1260100 Piston washer
47 1260110 Nut
48
1260060 Con-rod (Alum.)
1320140 Con-rod (Bronze)
49 1260162 Valve plug
50 960160 O-Ring
51 1269050 Complete valve
52 880830 O-Ring
53 1262220 Pump head
54 1281550 Washer
55 680570 Screw
56 180101 O-Ring
57 820361 Plug
58 880530 Plug
59 740290 O-Ring
60 1260140 Gasket support ring
61 1260130 H.P. gasket
62 1260151 Piston guide
63 1260420 O-Ring
64 1260440 L.P. gasket
65 1260460 Seal
66 1260010 Pump housing
67 1260050 Roller bearing
Legend
Qty.
1
AR620 / AR630
8
4
1
1
1
4
2
4
1
1
1
1
1
1
1 Repair Kits for Pump
1
1
Water Seals Valves Pistons
1
4
Kit 1866 Kit 1864 Kit 2628
1
1
Pos. Qty. Pos. Qty. Pos. Qty. Pos. Qty.
1
1
60 3 51 6 43
1
1 61 3 52 6 44
1
63 3 45
1
64 3 46
1
1 47
6
1
1
O-Rings
1
1
Kit 2767
1
1
Pos. Qty.
1
1
44 3
1
3
50 6
3
52 6
3
56 1
3
3
59 3
3
63 3
3
3
3
6
6
6
6
1
6
6
1
1
2
2
3
3
3
3
3
3
1
1
Oil Seals
Kit 1865
3 33 1
3 39 1
3 65 3
3
3