Shark BG-2820 - Manual (Page 28)

97-707 • Bg • reV. /07
OPERA
TOR’S MANU
AL
PRESSURE
W
ASHER
8
ITeM paRT No. deSCRIpTIoN qTy
1 83-005150010 check connector 1
 83-005060108 ‡ o-ring 068 3
3 83-00510000 shutter spring 1
4 83-00410000 shutter 1
5 83-004060109 ‡ o-ring 63190 sH 1
6 83-00517010 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
1 83-00500010 ‡ Back ring 
13 83-005060106 ‡ o-ring 031 1
14 83-00516050 stem al606 1
14 83-005160514 stem al607 1
Unloader adjustment procedures
remove lock nut (item 7).
remove adjustment knob (item 8).
loosen the () nuts (item 5), 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 5) tightly against the upper nut (items
5). re-attach adjustment knob (item 8) and screw down until contact is made with the nuts (items 5).
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 5), remove adjusting knob (item
8), re-adjust (raise) nuts (items 5) 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 5) on the stem (item 14). re-attach the adjusting knob (item 8), then repeat step #6.
1.
.
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 
17 83-005060101 ‡ o-ring 050 1
18 83-00500003 Body By pass 1/4 g-F 1
18 83-0050006 Body By pass 3/8 g-F 1
19 83-00506000 3/8 gasket 1
0 83-00106019 ‡ o-ring 043 1
1 83-00106000 ‡ seat 1
 83-001160000 ‡ Ball 1
3 83-005100003 Ball spring 1
4 83-005150009 seat union 1
5 83-00503000 m8 nut 
6 83-005170101 3/8g plug 
7 83-00506001 gasket 1
83-005650200 ‡ Repair kit