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Installation, Operation, Repair, and Parts Manual
Hydraulically-Driven Pressure Washers
Hydraulically-Driven Pressure Washers with Hose and Gun Assembly
Notes are used to notify of installation, operation, or
maintenance information that is important but not
safety related.
Caution is used to indicate the presence of a hazard,
which will or can cause minor injury or property
damage if the notice is ignored.
Do not pump flammable or explosive fluids such as
gasoline, fuel oil, kerosene, etc. Do not use in
explosive atmospheres unless the Pump is
properly grounded and the proper drive is used.
The Pump should only be used with liquids
compatible with the Pump materials. Failure to
follow this notice can result in severe personal
injury and/or property damage and will void the
product warranty.
Hydraulically-Driven Pressure Washer
Models 1802C, 1803C, 1804C, 1805C, 1806C,
1807C, 1824C, 1825C, 1826C and 1827C
Description
Hydraulic Motor
Model
Max.
Max.
Requirements
Number GPM
PSI
GPM
1803C
3.0
1000
5.0
1805C
3.0
1500
8.0
1807C
3.0
2000
11.0
1825C
4.0
1500
8.5
1827C
4.0
2000
8.5
Hydraulic Motor
Model
Max.
Max.
Requirements
Number GPM
PSI
GPM
1802C
3.0
1000
5.0
1804C
3.0
1500
8.0
1806C
3.0
2000
11.0
1824C
4.0
1500
8.5
1826C
4.0
2000
8.5
General Safety Information
Description
PSI
1300
Forged Brass Head Triplex Pump with
hydraulic motor, adjustable unloader, gauge,
1
⁄
"
3
⁄
"
NPT input,
quick disconnect output
2
8
1900
Forged Brass Head Triplex Pumps with
1300
hydraulic motor, chemical injector,
2000
adjustable unloader, gauge,
⁄
"
3
2000
quick disconnect output
8
Description
PSI
1300
Forged Brass Head Triplex Pump
with hydraulic motor, adjustable unloader,
⁄
"
⁄
"
1
3
gauge,
NPT input,
2
8
and 50 ft. hose and gun assembly
1900
Forged Brass Head Triplex Pumps with hydraulic
1300
motor, chemical injector, adjustable unloader,
3
⁄
"
3
⁄
"
2000
gauge
GH input,
4
8
2000
and 50 ft. hose and gun assembly
Warning denotes that a potential hazard exists and
indicates procedures that must be followed exactly
to either eliminate or reduce the hazard, and to
avoid serious personal injury, or prevent future
safety problems with the product.
Danger is used to indicate the presence of a hazard
that will result in severe personal injury, death, or
property damage if the notice is ignored.
The sound pressure level of the Pump may exceed
80dBA. Observe all safety precautions when
operating the Pump within close proximity 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.
Form L-0560PW
Estimated
Weight Ea.
3
⁄
" GH input,
4
Estimated
Weight Ea.
quick disconnect output,
quick disconnect output,
02/08
28 lbs.
26 lbs.
26 lbs.
33 lbs.
33 lbs.
38 lbs.
41 lbs.
26 lbs.
49 lbs.
49 lbs.
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Summary of Contents for Hypro 1802C
-
Page 1: General Safety Information
Hydraulically-Driven Pressure Washer Models 1802C, 1803C, 1804C, 1805C, 1806C, 1807C, 1824C, 1825C, 1826C and 1827C Form L-0560PW 02/08 Installation, Operation, Repair, and Parts Manual Description Hydraulically-Driven Pressure Washers Hydraulic Motor Model Max. Max. Estimated Requirements Number GPM Description Weight Ea. -
Page 2: Installation Requirements
United States Environmental Always drain and flush the pump prior to returning Protection Agency licensing. the Pump to Hypro for repair. Never store a pump containing hazardous materials. Never use your hand to check the condition of hydraulic lines or hoses. If hydraulic fluid penetrates Prior to returning a pump for service or repair, drain the skin, get medical help immediately. - Page 3 Dipstick, and topping off if necessary (See Figure 2). Use 4. Open and close the Pressure Wash Gun several Hypro Oil (part no. 2160-0038). Hypro oil is specially times to check the unloading pressure and Unloader formulated, high grade, non-detergent, SAE 30 weight oil Valve function.
-
Page 4: Hydraulic System Operation
Change the oil after 40 hours of break-in operation. the pump with a 50/50 solution of automotive-type Thereafter, change the oil every year or 500 hours, antifreeze and water. whichever comes first. Bypass Operation Care of the Pump During Bypass Operation (when water is diverted back to After each use, flush the pump with a neutralizing the pump inlet side) a temperature rise occurs. - Page 5 Apply a thin film of oil to the new O-rings and Plungers before installing them. 7. Inspect the Plungers for cracking and replace them if damaged installing new O-rings and Slinger Rings at the same time. Plunger Slinger Ring 8. Install the Plunger Retaining Nut Washers: then, Plunger Retaining apply a drop of blue thread locking compound to the Plunger Retaining...
- Page 6 Valve Replacement Erratic or low-pressure operation may be the result of debris in the Valves or Worn Poppets and/or Seats. 1. Remove the Plugs; then using needle nosed pliers, remove the Valves (See Figure 10). Plug Remove and discard the old O-ring (See Figure 10). O-ring Valve 3.
- Page 7 10. Remove the Roll Pin from the Shaft (See Figure 13). Body, or Gerotor Housing, the part that is worn must be replaced. If the Gerotor Housing is damaged, the 11. Inspect the Motor End Plate, Body, and Gerotor Gerotor parts must also be replaced. Housing for signs of wear and/or gouging.
- Page 8 between the Seal on the Shaft and the support fixture. Using an arbor press, press the Shaft Seal through the bearing, seal spacer, and seal (See Figures 17 and 18). Shaft Ball Bearing Shaft 5. Inspect the sealing area of the Shaft and other Shaft Assembly components for signs of wear and replace Seal Spacer them if necessary.
- Page 9 Installing the Shaft Assembly into the Motor Body 1. Place the Shaft Assembly into the Motor Body Bearing Bore (See Figure 23). The Shaft Assembly and Motor Body Bearing Bore must be aligned prior to pressing the Shaft Figure 23 Assembly into the Motor Body Bearing Bore.
-
Page 10: Troubleshooting
14. Remove the Hydraulic Motor from the vise; then, turn b. For Open Center Hydraulic Systems, turn the the Motor Shaft by hand to check for binding, the Bypass Adjusting Screw in until it bottoms out in Motor Shaft should turn freely. the End Plate;... - Page 11 Typical Hydraulic Circuit Schematics for Hydraulic-Driven Pressure Washers Figure 27 Typical Hydraulic Circuit Schematics for Hydraulic-Driven Pressure Washers...
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Page 12: Mounting Dimensions
Mounting Dimensions Figure 28 Mounting Dimensions... - Page 13 Models 1802C, 1803C, 1804C, 1805C, 1806C and 1807C Parts List 1 85 Figure 29 Models 1802C, 1803C, 1804C, 1805C, 1806C and 1807C Exploded View Ref. No. Part No. Description Qty. Ref. No. Part No. Description Qty. 9910-680570 Socket Head Cap Screw...
- Page 14 Models 1824C, 1825C, 1826C and 1827C Parts List Figure 30 Models 1824C, 1825C, 1826C and 1827C Exploded View Ref. No. Part No. Description Qty. Ref. No. Part No. Description Qty. 9910-960160 O-ring 9910-1260110 9910-1260162 Plug 9910-1380141 Base 9910-740290 O-ring 3400-0133 Valve 9910-1980740 Plug...
- Page 15 Unloader/Bypass Valve Model 3390-0086 (Models 1802C/1803C) Figure 31 Injector/Unloader Seat and Seal Kit Items Ref. No. Part No. Description Qty. 3220-0039 Pressure Adjustment Nut 1900-0116 Main Spring 1900-0101 Spring Button 2404-0151 Plunger Retainer 2404-0016 Plunger 1400-0020 Sleeve 0117-3390 Valve Body...
- Page 16 3390-0104/2B Unloader Assembly- Models 1804C/1805C, 1806C/1807C, 1824C/1825C, 1826C/1827C Figure 32 Unloader Assembly Items Ref. No. Part No. Description Qty. Repair Kit Item Washer Repair Kit Item O-ring 1720-0186 O-ring Repair Kit Item O-ring Repair Kit Item Washer 1720-0196 O-ring 1720-0163 O-ring 3210-0080 Valve Seat...
- Page 17 Model No. 2500-0015C Hydraulic Motor Parts List - Models 1802C/1803C, 1804C/1805C Figure 33 Hydraulic Motor Exploded View 2500-0015C Ref. No. Part No. Description Qty. Ref. No. Part No. Description Qty. 1820-0013 Retaining Ring (Internal) 1600-0047 Dowel Pin 1810-0014 Retaining Ring (External)
- Page 18 Model No. 2500-0020C Hydraulic Motor Parts List - Models 1806C/1807C, 1824C/1825C, 1826C/1827C Figure 34 Hydraulic Motor Exploded View 2500-0020C Ref. No. Part No. Description Qty. Ref. No. Part No. Description Qty. 1820-0013 Retaining Ring (Internal) 1600-0052 Dowel Pin 1810-0014 Retaining Ring (External) 3900-0024 Gerotor (HM3C) 0251-2500C2...
- Page 19 Gun, Lance, Nozzle and Hose Assembly Parts List Figure 35 Gun, Lance, and Hose Replacement Components Gun Parts List Ref. No. Part No. Description Qty. 2800-0023 Case (Right and Left) 2825-0023 Trigger 1610-0049 1610-0050 Trigger Pin 3210-0082 Trigger Wear Pin 0101-3381B Body (3381-0018) Repair Kit Item...
- Page 20 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.
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