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Hypro warrants to the original purchaser of its products (the “Purchaser”) that such products will be free from defects in material and

workmanship under normal use for the period of one (1) year for all products except: oil crankcase plunger pumps will be free from

defects in material and workmanship under normal use for the period of five (5) years, and accessories will be free from defects in

material and workmanship under normal use for the period of ninety (90) days. In addition, Hypro warrants to the purchaser all forged

brass pump manifolds will be free from defects in material and workmanship under normal use and from damage resulting from

environmental conditions for the life of the pump.

“Normal use” does not include use in excess of recommended maximum speeds, pressures, vacuums and temperatures, or use

requiring handling of fluids not compatible with component materials, as noted in Hypro product catalogs, technical literature, and

instructions. This warranty does not cover freight damage, freezing damage, normal wear and tear, or damage caused by

misapplication, fault, negligence, alterations, or repair that affects the performance or reliability of the product.

THIS WARRANTY IS EXCLUSIVE. HYPRO MAKES NO OTHER WARRANTY, EXPRESS OR IMPLIED, INCLUDING BUT NOT

LIMITED TO ANY WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Hypro’s obligation under this warranty is, at Hypro’s option, to either repair or replace the product upon return of the entire product to

the Hypro factory in accordance with the return procedures set forth below.  

THIS IS THE EXCLUSIVE REMEDY FOR ANY

BREACH OF WARRANTY.

IN NO EVENT SHALL HYPRO BE LIABLE FOR ANY INCIDENTAL OR CONSEQUENTIAL DAMAGES OF ANY KIND,

WHETHER FOR BREACH OF ANY WARRANTY, FOR NEGLIGENCE, ON THE BASIS OF STRICT LIABILITY, OR OTHERWISE.

Return Procedures

All pumps or products must be flushed of any chemical (ref. OSHA Section 0910.1200 (d)(e)(f)(g)(h) and hazardous chemicals must

be labeled before being shipped* to Hypro for service or warranty consideration. Hypro reserves the right to request a Material Safety

Data sheet from the Purchaser for any pump or product Hypro deems necessary. Hypro reserves the right to “disposition as scrap”

pumps or products returned which contain unknown substances, or to charge for any and all costs incurred for chemical testing and

proper disposal of components containing unknown substances. Hypro requests this in order to protect the environment and

personnel from the hazards of handling unknown substances.

For technical or application assistance, call the Hypro Technical/Application number: 800-445-8360.

To obtain service or warranty assistance, call the Hypro Service and Warranty number: 800-468-3428; or call the Hypro Service and

Warranty FAX: (651) 766-6618.

Be prepared to give Hypro full details of the problem, including the following information:

1. Model number and the date and from whom you purchased your pump.

2. A brief description of the pump problem, including the following:

• Liquid pumped. State the pH and any non-soluble 

• Drive type (gas engine/electric motor; direct/belt drive; 

materials, and give the generic or trade name. 

tractor PTO)  and rpm of pump.

• Temperature of the liquid and ambient environment.

• Viscosity (of oil, or other than water weight liquid).

• Suction lift or vacuum (measured at the pump). 

• Elevation from the pump to the discharge point.

• Discharge pressure. 

• Size and material of suction and discharge line.

• Size, type, and mesh of the suction strainer. 

• Type of spray gun, orifice size, unloader/relief valve.

Hypro may request additional information, and may require a sketch to illustrate the problem.  Contact the factory to receive a return

material authorization before sending the product. All pumps returned for warranty work should be sent shipping charges prepaid to:

HYPRO

Attention: Service Department

375 Fifth Avenue NW

New Brighton, Minnesota 55112

*Carriers, including U.S.P.S., airlines, UPS, ground freight, etc., require specific identification of any hazardous materials being

shipped. Failure to do so may result in a substantial fine and/or prison term. Check with your shipping company for specific

instructions.

Hypro 2008

Printed in the USA

Limited Warranty on Hypro Pumps 

Summary of Contents for 1802C

Page 1: ...ximity for extended periods by wearing hearing protectors Extended exposure to elevated sound levels will result in permanent loss of hearing acuteness tinnitus tiredness stress and other effects such as loss of balance and awareness 1803C 3 0 1000 5 0 1300 Forged Brass Head Triplex Pump with 28 lbs hydraulic motor adjustable unloader gauge 1 2 NPT input 3 8 quick disconnect output 1805C 3 0 1500 ...

Page 2: ... the system before servicing Secure the discharge line before starting the pump An unsecured discharge line may whip resulting in personal injury and or property damage Check all hoses for weak or worn condition before each use Make certain that all connections are tight and secure Periodically inspect the pump and the system components Perform routine maintenance as required Use only pipe hose an...

Page 3: ... black outer body clockwise CW or counterclockwise CCW 6 Your Pressure Washer is equipped with the optional Detergent Injection System The nozzle must be set in Low Pressure Mode to activate the injector and draw soap For rinsing the nozzle should be set in High Pressure Mode Pushing the black nozzle body forward places the nozzle in the Low Pressure Mode Pulling the black nozzle body back places ...

Page 4: ...pump to compensate by varying the Pump flow Do not bypass oil Use a Flow Control at the Motor Inlet to control the flow and speed of the motor Hydraulic Oil The specifications for the Hydraulic Driven Pressure Washer where compiled using Mobil DTE 26 hydraulic oil at a temperature of 140 F 60 C Using other type of oil and different temperatures will result in different flow requirements to replica...

Page 5: ...rews securing the pump head to the pump body See Figure 3 2 While turning the crankshaft use two screwdrivers to carefully pry between the pump head and pump body to remove the pump head See Figure 4 3 Using Extractor Pliers remove the Seal Retainers and Seals See Figure 7 4 Using a small blade knife remove the Seals from the Seal Retainers 5 Figure 5 Figure 6 5 Lightly lubricate and install new s...

Page 6: ...contamination of parts 1 Place the Hydraulic Motor in a vise See Figure 11 2 Using a large crescent or 1 1 16 box wrench loosen but do not remove the Tank Port Adapter and Pressure Port Adapter See Figure 11 3 Using a 9 16 box wrench loosen the Nut on the Bypass Adjusting Screw See Figure 11 4 Using a small screwdriver remove the Bypass Adjusting Screw from the Hydraulic Motor This will remove the...

Page 7: ...taining ring cannot be easily removed place the motor body on the arbor press support fixture with the ball bearing side up Gently press against the shaft to relieve pressure of the ball bearing pressing against the internal retaining ring 3 Place the body in the support fixture and position it on the arbor press then press the Shaft Assembly out of the Motor Body See Figure 15 Figure 14 Figure 15...

Page 8: ...rge end of the Shaft slide the Seal over the smaller end of the Shaft and gently push it onto the large end of the Shaft until it is seated against the Seal Spacer See Figures 19 20 Shaft Bearing Installation Figure 18 Shaft Ball Bearing Seal Spacer Seal Shaft Figure 20 Shaft Shaft Seal Seal Figure 19 Shaft Large Retaining Ring Thrust Bearing and Races Seal Spacer 1 Install the Spacer Ring and Bal...

Page 9: ...outer portion of the Gerotor making sure the Gerotor is centered within the O ring groove in the Motor Body See Figure 25 5 Lightly lubricate the area between the inner and outer Gerotor and Gerotor Housing with hydraulic or mineral oil 6 Install the Gerotor Housing making sure the Pins in the Gerotor Housing line up with their respective holes in the Motor Body 7 Coat the new O ring with a thin f...

Page 10: ... d A s s a p y B e h t n r u T c i l u a r d y H e h t f o e d i s e h t n o d e t a c o l s i t u p t u o d e r i s e d e h t l i t n u e s i w k c o l c r o t o M d e n i a t t a n i d e l l a t s n i n e e b s a h e c i f i r O g n i r e t e M r e p o r p m I t r o P e r u s s e r P e h t e c i f i r O g n i r e t e M e z i s r e p o r p e h t l l a t s n I l l a m s o o t s i e z i s e s o H c...

Page 11: ...11 Typical Hydraulic Circuit Schematics for Hydraulic Driven Pressure Washers Figure 27 Typical Hydraulic Circuit Schematics for Hydraulic Driven Pressure Washers ...

Page 12: ...12 Mounting Dimensions Figure 28 Mounting Dimensions ...

Page 13: ...her 3 262 3500 0061 Piston 3 272 9910 480480 O ring 3 282 9910 1260091 Spacer 3 29 9910 1260070 Guiding Piston 3 30 9910 1260080 Piston Pin 3 Ref No Part No Description Qty 31 9910 1260760 Socket Head Cap Screw 6 32 9910 1269101 Complete Cover 1 36 9910 1260060 Connecting Rod Aluminum 3 36 9910 1320140 Connecting Rod Bronze 1806C 1807C 1 373 9910 1260040 Gasket 1 38 9910 740290 O ring 2 39 9910 19...

Page 14: ...Denotes Piston Kit item 9910 KIT2746 3 Denotes Oil Seal Kit item 9910 KIT2787 4 Denotes Water Seal Kit item 9910 KIT2747 5 Denotes Support Ring Kit item 9910 KIT2745 Ref No Part No Description Qty 25 9910 1260110 Nut 3 26 9910 1380141 Base 2 27 9910 740290 O ring 2 28 9910 1980740 Plug 2 29 9910 1260470 Screw 4 303 9910 1260460 Seal 3 31 9910 1780120 Rear Piston Guide 3 324 9910 770260 O ring 3 33...

Page 15: ...lunger Retainer 1 5 2404 0016 Plunger 1 61 Cup 1 7 1400 0020 Sleeve 1 81 Cup 1 9 0117 3390 Valve Body 1 10 3260 0037 Bypass Poppet 1 11 1830 0140 Bypass Seal Outlet 1 12 1720 0004 O ring 1 13 2404 0164 Bypass Adapter 1 14 1600 0041 Poppet Pin 1 151 O ring 1 16 3260 0048 Check Valve Poppet 1 17 1900 0123 Check Valve Spring 1 18 1830 0115 Poppet Retainer 1 19 1720 0004 O ring 1 20 1720 0064 O ring 1...

Page 16: ...tem Washer 1 61 1720 0196 O ring 1 71 1720 0163 O ring 1 81 3210 0080 Valve Seat 1 91 1720 0190 O ring 1 101 3320 0035 Piston 1 111 1900 0161 Spring 1 121 Repair Kit Item O ring 1 131 Repair Kit Item O ring 1 14 9900 38FPB Quick Disconnect Male End 1 15 3430 0483 Bolt Kit Assembly NPT 1 15 3430 0487 Bolt Kit Assembly BSP 1 Figure 32 Unloader Assembly Items 1 2 3 4 5 6 7 8 9 10 11 15 12 13 14 1 Den...

Page 17: ...1 2500 0015C Complete Motor Assy 1 31 25 30 24 23 29 28 27 26 25 22 21 20 19 18 13 17 15 16 14 13 12 9 11 10 8 7 6 5 4 3 2 Figure 33 Hydraulic Motor Exploded View 2500 0015C 1 Ref No Part No Description Qty 1 1820 0013 Retaining Ring Internal 1 2 1810 0014 Retaining Ring External 1 31 2000 0010 Ball Bearing 1 4 1410 0073 Spacer 1 51 2104 0005 Shaft Seal 1 6 1410 0074 Seal Spacer 1 7 2029 0014 Thru...

Page 18: ...807C 1824C 1825C 1826C 1827C 1 Figure 34 Hydraulic Motor Exploded View 2500 0020C 2 3 4 5 6 7 8 10 11 9 12 13 14 16 15 17 13 18 19 20 21 22 25 26 27 28 29 23 24 30 25 31 Ref No Part No Description Qty 16 1600 0052 Dowel Pin 1 17 3900 0024 Gerotor HM3C 1 18 0251 2500C2 Motor End Plate Main Brg 1 19 3220 0029 Bypass Adjusting Screw 1 201 1700 0047 Gasket 1 211 2270 0027 Washer 1 22 2250 0038 Lock Nu...

Page 19: ...t Item Retainer 1 13 3210 0081 Seat 3381 0018 1 13 3210 0083 Seat 3381 0018 Std 1 14 1720 0163 O ring 1 15 Repair Kit Item Ball 1 16 Repair Kit Item Spring 1 17 Repair Kit Item O ring 1 18 Repair Kit Item Retainer 1 19 2270 0068 Seal Washer 2 20 2404 0223 Tube Inlet 1 21 2404 0224 Tube Adapter 1 22 2200 0038 Screw 7 Figure 36 Gun Replacement Components 5 3 2 2 4 1 21 19 20 19 2 14 16 18 17 15 13 1...

Page 20: ...or warranty consideration Hypro reserves the right to request a Material Safety Data sheet from the Purchaser for any pump or product Hypro deems necessary Hypro reserves the right to disposition as scrap pumps or products returned which contain unknown substances or to charge for any and all costs incurred for chemical testing and proper disposal of components containing unknown substances Hypro ...

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