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97-707 • BG • REV. 2/07
OPERATOR’S MANUAL
PRESSURE WASHER
28
ITEM PART NO. DESCRIPTION QTY
1 83-005150010 Check Connector 1
2 83-005060108 ‡ O-Ring 2068 3
3 83-005100002 Shutter Spring 1
4 83-004120000 Shutter 1
5 83-004060109 ‡ O-Ring 631290 SH 1
6 83-005170102 1/4 G Plug 1
7 83-005030101 M8 Lock Nut 1
8 83-005100100 Knob 1
9 83-005150101 Washer 1
10 83-005400403 4000 PSI Spring (Black) 1
11 83-005150011 Stem Guide Union 1
12 83-005000102 ‡ Back Ring 2
13 83-005060106 ‡ O-Ring 2031 1
14 83-005160502 Stem AL606 1
14 83-005160514 Stem AL607 1
Unloader Adjustment Procedures
Remove lock nut (Item 7).
Remove adjustment knob (Item 8).
Loosen the (2) nuts (Item 25), move them upward on stem (Item 14) till you see 4 or more threads below
the nut.
Re-attach adjusting knob (Item 8).
Start machine. Open the trigger of the spray gun. Increase pressure by turning adjustment knob (Item 8)
clockwise till pressure is at the desired operating pressure.
Remove the adjustment knob (Item 8), tighten the lower nut (items 25) tightly against the upper nut (Items
25). Re-attach adjustment knob (Item 8) and screw down until contact is made with the nuts (Items 25).
Screw down lock nut (Item 7) onto the stem (Item 14) until the stem (Item 14) threads cut into the nylon
insert of the lock nut (Item 7).
*If adjustment knob (Item 8) DOES NOT make contact with upper nut (Items 25), remove adjusting knob (Item
8), re-adjust (raise) nuts (Items 25) on stem (Item 14) and re-attach adjustment knob (Item 8), then repeat step
#6.
**If adjustment knob (Item 8) DOES make contact with upper nut; release the trigger of the spray gun and watch
the pressure gauge for the pressure increase (“spike”). This “spike” SHOULD NOT exceed 500 psi above the
operating pressure. If “spike” pressure exceeds the 500 psi limit, remove the adjusting knob (Item 8) and re-adjust
(lower) the nuts (Items 25) on the stem (Item 14). Re-attach the adjusting knob (Item 8), then repeat step #6.
1.
2.
3.
4.
5.
6.
AR-AL UNLOADER EXPLODED VIEW PARTS LIST
ITEM PART NO. DESCRIPTION QTY
15 83-005106301 Spring Pin 1
16 83-005000101 Back Ring 2
17 83-005060101 ‡ O-Ring 2050 1
18 83-005020003 Body By Pass 1/4 G-F 1
18 83-005020026 Body By Pass 3/8 G-F 1
19 83-005060200 3/8 Gasket 1
20 83-001060129 ‡ O-Ring 2043 1
21 83-001060200 ‡ Seat 1
22 83-001160000 ‡ Ball 1
23 83-005100003 Ball Spring 1
24 83-005150009 Seat Union 1
25 83-005030200 M8 Nut 2
26 83-005170101 3/8G Plug 2
27 83-005060201 Gasket 1
83-005650200 ‡ Repair Kit