9.800-078.0-n 03/15/17 to locate your local kärcher commercial pressure washer dealer nearest you, visit www.Karchercommercial.Com model # order # hds 3.5/30 eb cage 1.575-509.0 hds 3.5/30 ec cage 1.575-510.0 model # order # hds 3.9/20 ea cage 1.575-505.0 hds 3.5/30 ea cage 1.575-508.0 operator’s ma...
Contents 2 hds 505, 508, 509, 510 • 9.800-078.0 - n introduction & important safety information 4-6 component identifi cations 7 assembly instructions 8 installation 9 operating instructions 10 detergents & general cleaning techniques 11 shut down & clean-up procedures 12 storage 12 troubleshooting ...
3 contents hds 505, 508, 509, 510 • 9.800-078.0 - n model number ______________________________ serial number ______________________________ date of purchase ____________________________ the model and serial numbers will be found on a decal at tached to the pressure washer. You should record both se...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 4 introduction & important safety information thank you for purchasing this pressure washer. We reserve the right to make changes at any time without incurring any obligation. Owner/user responsibility: the owner and/or ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 5 pressure w asher opera t or’s man u al warning: high pressure de- veloped by these machines will cause personal injury or equipment damage. Keep clear of nozzle. Use caution when operating. Do not direct discharge stream at people, or severe injury or death...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 6 important safety information 21. Do not operate this machine when fatigued or under the infl uence of alcohol, prescription medications, or drugs. Follow the maintenance instructions specifi ed in the manual..
Hds 505, 508, 509, 510 • 9.800-078.0 - n 7 pressure w asher opera t or’s man u al 98000780-2 component identification caution hot water: m u s t u s e i n s u l a t e d spray gun and wand. High limit thermostat fuel tank wand holder downstream detergent injector pump fresh water faucet (not included...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al pressure w asher 8 98000780-4 assembly instructions step 1: connect wa ter supply hose. Step 3: connect high pres sure hose to discharge nipple by slid ing quick cou pler collar back. Insert quick coupler onto dis charge nipple and se cur...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 9 pressure w asher opera t or’s man u al installation place machine in a convenient location providing am ple support, draining and room for maintenance. This machine is intended for outdoor use. Ma chine must be stored indoors when not in use. Location: the ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al pressure w asher 10 98000780-12 operating instructions step 1: turn water on. Step 3: grip spray gun handle se cure ly and pull trigger. Then turn variable pressure control handle counterclockwise. Step 2: connect the power cord into the ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 11 pressure w asher opera t or’s man u al warning: some de ter gents may be harm ful if in haled or in- gest ed, caus ing severe nau sea, fainting or poi son ing. The harm- ful el e ments may cause prop- er ty dam age or severe injury. Step 1: connect deterge...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al pressure w asher 12 shutting down and clean-up caution: al ways store your pressure washer in a lo ca tion where the temperature will not fall be low 32°f (0°c). The pump in this machine is sus cep ti ble to permanent dam age if fro zen. ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 13 pressure w asher t roub leshooting guide troubleshooting problem possible cause solution low operating pressure faulty pressure gauge install new gauge. Insuffi cient water supply use larger garden hose; clean fi lter washer at water inlet. Old, worn or in...
Hds 505, 508, 509, 510 • 9.800-078.0 - n pressure w asher t roub leshooting guide 14 troubleshooting problem possible cause solution low water temperature improper fuel or water in fuel drain fuel tank and replace with proper fuel. Low fuel pressure increase fuel pressure. Weak fuel pump check fuel ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 15 pressure w asher t roub leshooting guide maintenance charts this pressure washer was produced with the best available materials and quality craftsmanship. However, you as the owner have certain responsibilities for the correct care of the equipment. Attent...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 16 preventative maintenance 1. Use clean fuel — kerosene, no. 1 home heating fuel or diesel fuel. Clean or replace fuel fi lter every 100 hours of operation. Avoid water contaminated fuel as it will seize up the fuel pum...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 17 pressure w asher opera t or’s man u al maintenance step 4 after circulating solution fl ush entire system with fresh water. Removal of soot in heating coil: in the heating process, fuel residue in the form of soot de pos its may develop between the heating...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 18 maintenance fuel pressure adjustment: to adjust fuel pressure, turn the adjusting screw with a standard screwdriver (located on the fuel pump) clock- wise to in crease, coun ter clock wise to decrease. Do not ex ceed ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 19 pressure w asher opera t or’s man u al 98000780-25 to fuel filter to ta nk exploded view - 1.575-505.0, 508.0, 509.0, 510.0 44 49 78 16 51 30 51 to fuel tank 32 for detail see control panel illus. 16 35 13 36 17 20 34 43 48 52 38 77 76 77 77 48 3 72 33 2 6...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 20 item part no. Description qty 1 9.800-002.0 label, use only kerosene 1 2 9.800-006.0 label, "hot/caliente" with arrows warning 1 3 8.932-969.0 label, warning, service cord 1 4 9.800-021.0 label, hot water outlet 1 5 9...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 21 pressure w asher opera t or’s man u al 1.575-505.0, 508.0, 509.0, 510.0 parts list 9.802-429.0 service cord, 12/4 (510.0 ) 15 ft item part no. Description qty 73 9.802-765.0 screw, 1/4-20 x 1/2" bh, soc 2 74 8.706-941.0 hose barb, 1/4" 1 75 9.802-779.0 nut...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 22 8 10 12 14 16 0 2 4 6 ground 98000780-26 item part no. Description qty 1 9.802-451.0 switch, rocker, carling w/green lens 2 (time delay option) 1 9.802-452.0 rocker switch, red lens (time delay option) 1 2 9.802-447.0...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 23 pressure w asher opera t or’s man u al control panel - 1.575-505.0, 508.0, 509.0, 510.0 parts list item part no. Description qty 11 9.802-064.0 grommet, rubber, nozzle holder 4 12 9.802-880.0 cover, electrical box 1 13 9.802-759.0 screw, 10/32" x 1/2" 13 (...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 24 98000780-27 float tank option - 505.0, 508.0, 509.0, 510.0 to float tank 18 19 6 3 5 2 1, 8 7 26 24 23 22 21 20 27 10 4 9 7 34 21 42 31 21 30 33 17 32 28 29 16 15 14 13 12 11 39 36 39 18 41 40 38 steam option auto sta...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 25 pressure w asher opera t or’s man u al float tank 505.0, 508.0, 509.0, 510.0 parts list item part no. Description qty 15 9.802-961.0 hose connection bracket 1 16 9.802-700.0 bolt, 1/4" x 3/4", nc hh 2 17 9.802-781.0 nut, 3/8", flange, whiz loc, nc 4 18 8.7...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 26 98000780-28 auto start/stop options 505.0, 508.0, 509.0, 510.0 item part no. Description qty 1 9.802-146.0 swivel, 1/2" mp x 3/4" ghf w/strainer 1 2 8.706-844.0 tee, 1/2" female pipe 1 3 8.706-797.0 nipple, 1/2" hex 1...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 27 pressure w asher opera t or’s man u al auto start/stop - steam options & parts list 505.0, 508.0, 509.0, 510.0 open for steam 10-99011 98000780-29 item part no. Description qty 1 8.918-423.0 hose, 3/8" x 22" pressure loop 1 2 9.802-146.0 swivel, 1/2 x 3/4 ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 28 98000780-30 1.575-505.0, 508.0, 509.0, 510.0 pump assembly item part no. Description qty 1 8.707-256.0 pump protector, 1/2" 1 2 9.802-458.0 pressure switch, 1/4" 1 3 9.802-039.0 elbow, 1/2" jic x 3/8", 90° 1 4 9.802-1...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 29 pressure w asher opera t or’s man u al 98000780-31 item part no. Description qty 1 8.706-958.0 hose barb, 1/4" barb x 1/4" npt, 90° 2 2 6.390-126.0 clamp, hose, .46-, .54 st 2 3 9.802-187.0 valve, flow control w/metering 1 4 8.705-973.0 nipple, 1/4" hex st...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 30 98000780-32 item part no. Description qty 1 9.802-165.0 coupler, 1/4" male 1 9.802-096.0 ▲ quick coupler o-ring, small 1 2 9.802-286.0 ▲ nozzle only, 1/8" soap 1 3 9.802-222.0 wand, zinc, vp, w/coupler 1 4 8.917-057.0...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 31 pressure w asher opera t or’s man u al uu1 unloader valve exploded view 9.175-018.0, 3500 psi universal unloader uu1 unloader valve exploded view parts list item part # description kit qty 1 piston housing a 1 2 piston c 1 3 8.749-795.0 piston o-ring back ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 32 item part no. Description qty 1 8.751-216.0 crankcase 1 2* see kits below plunger oil seal 3 3* see kits below o-ring Ø1.78 x 31.47 3 4* see kits below pressure ring 3 5* see kits below u-seal 3 6* see kits below inte...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 33 pressure w asher opera t or’s man u al item part no. Description qty 36* see kits below copper spacer 3 37* see kits below o-ring Ø1.78 x 7.66 3 38* see kits below tefl on ring 3 39 8.751-224.0 plunger rod 3 40 9.803-158.0 connecting rod 3 41 8.751-228.0 c...
Hds 505, 508, 509, 510 • 9.800-078.0 - n opera t or’s manu al p ressure w asher 34 machine pump pump unloader unloader pulley motor motor pulley part # model parts# replacement production pulley part # size voltage part # pulley part # 1.575-505.0 km-4035 8.751-189.0 9.175-018.0 9.175-016.0 2ak74h 9...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 35 pressure w asher opera t or’s man u al model bushing belt belt motor stepdown primary second part # bushing part # size part # contactor overload transformer fuse part# fuse part# 505.0 hx1-1/8" 9.802-400.0 ax 36(2) 9.802-408.0 8.724-281.0 na 9.802-551.0 9...
Hds 505, 508, 509, 510 • 9.800-078.0 - n pressure w asher specifi cations 36 for best performance specify genuine clearfi re replacement parts clearfire burner replacement parts 28 36 36 1 1 31 36 47 30 15 22 33 33 40 17 14 3 27 5 5 48 45 49 29 46 39 39 7 7 8 9 2 38 32 36 4 44 6 36 12 11 13 3 39 39 ...
Hds 505, 508, 509, 510 • 9.800-078.0 - n 37 pressure w asher specifi cations for best performance specify genuine clearfi re replacement parts replacement parts list item part no. Description qty 1 8.919-050.0 burner housing assembly 1 2 8.751-160.0 air guide 1 3 8.700-758.0 fuel pump, suntec a2va-3...
Hds 505, 508, 509, 510 • 9.800-078.0 - n pressure w asher specifi cations 38 fuel nozzle burner w/100 psi burner fuel pump/ fuel model # assy # check valve motor solenoid/cord solenoid coil electrode 1.575-505.0 8.918-903.0 8.754-953.0 8.750-518.0 8.754-706.0 8.700-779.0 8.750-778.0 1.575-508.0 8.91...
Www.Karchercommercial.Com form hds 505, 508, 509, 510 # 9.800-078.0 • printed in u.S.A. Or mexico.