Hotsy 790SS Operating Instructions And Parts Manual
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models 790ss, 790ss-208,
795ss, 795ss-208
OPERATING INSTRUCTIONS
AND PARTS MANUAL
Read instructions carefully before attempting to assemble, install, operate or service this pressure
washer. Failure to comply with instructions could result in personal injury and/or property damage!
serial number:
date purchased:
for sales and service, please contact:
97-6232
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Table of Contents
Troubleshooting
Related Manuals for Hotsy 790SS
Summary of Contents for Hotsy 790SS
- Page 1 795ss, 795ss-208 OPERATING INSTRUCTIONS AND PARTS MANUAL Read instructions carefully before attempting to assemble, install, operate or service this pressure washer. Failure to comply with instructions could result in personal injury and/or property damage! serial number: date purchased: for sales and service, please contact: 97-6232...
- Page 2 790ss 795ss Pump Volume At Pump Head: 2.8 gpm/168 gph Pump Volume At Pump Head: 3.5 gpm/210 gph ● ● Pump Pressure At Pump Head: 2000 psi Pump Pressure At Pump Head: 2000 psi ● ● Burner Type: Fuel Oil Fired, 289,900 BTU/Hr.
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Page 3: Table Of Contents
The model and serial numbers will be found on a decal attached to the pressure washer. You should record both serial number and date of purchase and keep in a safe place for future reference. 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 4: Important Safety Information
Always discon- operation. nect power before servicing. 8. Grip cleaning wand securely with both hands be- 97-6232 • HOTSY 790SS • REV. 5/06 fore starting the cleaner. Failure to do this could... -
Page 5: Important Safety Information
19. Do not operate this product when fatigued or under the influence of alcohol or drugs. Keep operating area clear of all persons. 20. Hotsy will not be liable for any changes made to our standard machines, or any components not purchased from Hotsy. -
Page 6: Component Identification
— Allows you to siphon and mix detergents. wand — Must be connected to the spray gun. high pressure hose — Connect one end to water pump high pressure discharge nipple and the other end to spray gun. 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 7: Assembly Instructions
1. Use teflon tape on plumbing connections to prevent leakage. 2. Install pressure hose on machine as shown in thermal rupture disk pressure hose bolts, washers and flange nut Figure 1 - Pressure Hose Installation Figure 3 - Handle Installation 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 8: Installation Instructions
(refer to figure 4) and close air shutter until black smoke appears from burner exhaust vent. Note air band position. Next, slowly open the air shutter until white smoke just starts to appear. 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 9: Operation Instructions
2. Connect water supply hose to the standard garden hose connector. The water faucet and supply hose must be capable of providing 3.0 gpm for 790SS, 790SS-208 and 4 gpm for 795SS, 795SS-208. 3. Fill fuel tank. Use kerosene, #1 grade home heating... -
Page 10: General Cleaning Techniques & Storage
• Liquids containing solvents (i.e., paint thinners, gasoline, oils) • Tri-sodium phosphate products • Ammonia products • Acid-based products These chemicals will harm the machine and will dam- age the surface being cleaned. 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 11: Maintenance
These deposits will insulate the coil. This will restrict the air flow through the coil, further aggravating the soot buildup. Contact your local service center when desooting is needed. 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 12: Troubleshooting
97-6232 • HOTSY 790SS • REV. 5/06... -
Page 13: Troubleshooting
If the pressure washer demonstrates other symptoms or the corrective actions listed do not correct the problem, contact the local authorized Hotsy Service Center. The Hotsy Service Center can be identified by visiting www.hotsy.com or by calling 1-800-525-1976. - Page 14 (reversed view) brake assembly detail see control box assy. to float tank detergent injector 97-6232 • HOTSY 790SS • REV. 5/06...
- Page 15 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 16: Exploded Views & Parts List
Pump Base 861644 Hose Hanger 834159 Hotsy Detergent Decal 613025 Bolt 1/2" - 13 x 5" 780455 Flat Washer 1/2" 444438 Detergent Metering Decal 834185 Decal Water Inlet item part no. description 834154 Winterize Decal 97-6232 • HOTSY 790SS • REV. 5/06... - Page 17 703185 Nut, 1/4” ESNA, NC 780451 Washer, 1/4” Flat, SAE 919667 Pulley, 2AK 64 H (790SS, 790SS-208) 919498 Pulley, BK 85H (795SS, 795SS-208) 815202 Bushing, Sheave, H x 24mm 9.800-049.0 Label, Cleaning Solution 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 18: Control Panel Assembly & Parts List
Screw 4 mm x 6 mm 615414 Control Box Back 615952 Bolt 1/4" - 20 x 3/4" 780502 Lock Washer 1/4" External Tooth 703106 Flange Nut 1/4" - 20 6-051562 Strain Relief item part no. description 97-6232 • HOTSY 790SS • REV. 5/06... - Page 19 Power Cord w/GFCI, 20A(790SS Only) 631004 Power Cord w/GFCI, 30 Amp 847750 Cable Wrap 12" 444459 Decal Cord 646020 Decal GFCI 70-180503 Screw, M4 x 10 70-030207 Nut, 875651 Switch, Pressure ▲ Not Shown 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 20: Burner Assembly & Parts List
Air Cone, F-16 079506 Nozzle, 1.75 A 90° 783741 Motor 867368 Hose, 1/4” Push-On, Fuel Line 18" 707116 Hose, 1/4” Fuel Line, Green 21" 823998 Clamp, Hose 875590 ▲ Filter Screen Replacement item part no. description 97-6232 • HOTSY 790SS • REV. 5/06... - Page 21 848605 ▲ Blower Fan 823831 ▲ Coupling 944840 ▲ Fuel Pump Stem 944841 ▲ Screen Fuel Pump 826167 ▲ Strain Relief 703127 ▲ Strain Relief Nut ▲ Not Shown 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 22: Fuel Tank Assembly & Parts List
Nipple 3/8" Hose x 1/4" Hose 867368 Black Hose 1/4" 18" 823988 Hose Clamp 971511 Fuel Shut-off Valve 707116 Green Hose 1/4" 21" 915620 Expansion Plug 612975 Carriage Bolt 5/16"-18x1-1/2" 780452 Flat Washer 5/16" 703186 Wing Nut 5/16"-18 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 23: Float Tank Assembly & Parts List
Nipple, 1/2" NPT, 1/2" Barb 921369 Float Valve 600162 Adaptor 799172 Nut 1" - 14 935168 Suction Screen 1/2" 801126 Garden Hose Connector 952701 Float Tank W/Cover 876025 Screw, 10/32" x 1/2" 980466 Flat Washer, 1/4" 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 24: Pump Assembly & Parts List
600198 Adapter, 1/2" x 1/2" 823488 Clamp, Hose 715566 Plug, 3/8” Pipe, Hex Countersunk replacement parts 753025 O-Ring Repair Kit 753026 Discharge Repair Kit 753027 Stem Repair Kit 753134 O-Ring Repair Kit 875653 Switch 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 25: Coil Outlet Assembly & Parts List
Nipple, Pipe, 1/2" x 2" 2-00494 Plug, 1/2" Allen Countersunk 2-00681 Bushing, 1/2" x 3/8", Steel 2-2007 Nipple, 3/8" x 3/8" NPT ST Male 2-10862 Hosebarb, 3/8" Barb x 3/8" ML Pipe 10-09004 Label, Hot Water Outlet 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 26: Detergent Valve Assembly & Parts List
921438 Metering Valve 823989 Hose Clamp 961534 Tubing 1/4" Braided 72" 875748 Filter Screen 961534 Tubing, 1/4" Braided 12" 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 27: Hose, Spray Gun & Wand Assembly & Parts List
Nozzle#6 White(795SS, 795SS-208) 826169 Quick Disconnect 878917 ✪ Wand Assembly 915786 Quick Disconnect Plug 860447 Trigger Gun 4-02033450C Hose, 3/8” x 50’, 1 Wire Tuff SKin replacement parts 859762 Wand Grip 859763 Wand Handle 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 28: Spray Gun - Exploded View Parts List
✪ Valve Seat O-Ring ✪ 812801 Valve Body Plunger Guide Seat O-Ring ✪ Plunger Guide Backring ✪ Plunger Guide O-Ring ✪ Plunger Guide ✪ Plunger Rod ✪ Plunger Seat ✪ item part no. description 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 29: Spray Gun - Exploded View & Parts List
735316 Phillips Screw 914142 Trigger Lock Pin 960271 Trigger 881941 Trigger Lock Lever 936460 Inlet Pipe Seat 914285 Inlet Pipe 851190 Inlet Fitting 860496 Right Gun Shell replacement parts 877471 Trigger Gun Repair Kit 97-6232 • HOTSY 790SS • REV. 5/06... - Page 30 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 31: Pump - Exploded View Parts List
Connecting Rod Assembly 780564 Spring Washer 878197 Allen Screw 735313 Crankcase Cover Allen Screw 632020 Crankshaft Seal 827324 Crankcase Cover 855889 Crankcase Cover Gasket 632000 Crankshaft item part no. description 877249 Pump Shaft Key 97-6232 • HOTSY 790SS • REV. 5/06... - Page 32 753106 Complete Seal Packing Kit 18 mm ▼ 877672 Seal Packing Kit 18 mm ◆ 753039 Complete Valve Assembly Kit ★ 753107 Ceramic Sleeve Kit 18 mm ✤ 877655 Plunger Seal Kit ❖ 97-6232 • HOTSY 790SS • REV. 5/06...
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Page 33: Vba Unloader Exploded View And Parts List
Nut, 20mm x 1.5mm Kit "A" 70-262800 O-Ring Repair Kit 70-180004 Banjo Bolt, 3/8 Kit "B" 70-262801 Outlet Kit 70-020432 Body ST-MT Kit "C" 70-262802 Stem Repair Kit 70-020433 Body D 70-020434 Body SST 97-6232 • HOTSY 790SS • REV. 5/06... -
Page 34: Wiring Diagram
97-6232 • HOTSY 790SS • REV. 5/06... -
Page 36: Warranty
Hotsy will at its option repair or replace any part covered by this warranty which is defective under normal use for one year at no charge for parts or labor. All defects must be verified by an authorized Hotsy service location.