Figure 1 - RMW /SRMW. Max GPM Max PSI Model. normal use and service in a manner up to the directions and usage recommended

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1 (9) /(9) N/A Side Cover LIMITED WARRANTY N/A Rear Cover (9) Valve Cap N/A Connecting Rods WARRANTY RETURNS Items returned for warranty consideration must have a Returned Merchandise Authorization (RMA) number. All unauthorized returns will be refused and shipped back to sender. Please fax requests to: or to shop@arnorthamerica.com. Liability of manufacturer for warranty is limited to repair or replacement of parts only at the option of the manufacturer when such products are found to be of original defect or workmanship at the time it was shipped from factory. This warranty is in lieu of all other warranties, expressed or implied, including any warranty of merchantability and of any and all other obligations or liabilities on the part of the manufacturers or equipment. suitable for pump or accessory material construction. Warranty does not apply to normal wear (such as but not limited to: seals/packings, valves, plungers and sealing o-rings), freight damage, freezing damage or damage caused by parts or accessories not supplied by AR North America, Inc. Warranty does not apply to misuse or when pump or accessory is altered or used Warranty covers manufacturing defects or workmanship; that may develop under normal use and service in a manner up to the directions and usage recommended by the manufacturer. years and Axial Radial Pumps are warranted for a period of one year to the original purchaser. Electric Pressure Washers are warranted for a period of one year to the original purchaser. This is from the date shipped from factory or U.S. Warehouse. Accessories are warranted for a period of 90 days. RMW/SRMW. Oil Capacity in/lbs:(ft/lbs) Manifold Piston (Head) Nut RMW RMW // SRMW SRMW Series Series Pumps Pumps Figure - RMW /SRMW RMW-SRMW_-7-8_Prop_V WARNING: This product can expose you to chemicals including lead, DEHP, DINP which is known to the State of California to cause cancer and or lead to birth defects. more information go to PRECAUCIÓN: Este producto puede exponerle a los productos químicos incluyendo el plomo, DEHP, y DINP, que se saben al estado de California para causar el cáncer y/o defectos de nacimiento. Para más información, vaya a Special Note: Use only AR for the XJ/SJ/BK/RMW / SRMW Series pumps only: Do NOT change oil. Use oil only to add if low. This oil is a specially formulated synthetic with special additives for the demands of the XJ, SJ, BK and RMW / SRMW pump series. No other oil is factory approved for these pumps, and could result in pump failure. RMW / SRMW 00 rpm D Version Model Max GPM Max RMWG0D RMWG. 00 RMWGD.0 00 RMWGD 00 RMWGB 00 RMWGD 00 RMW G8D 800 SRMW.G. 00 to most / shaft. -. HP engines. The hollow shafted pump includes a built-in pressure control valve, and chemical injection system. This plunger pump will pump up to GPM at 00. It spins at 00 RPM in a direct drive system coupled with a gasoline engine. The Description Please read and save these instructions. Read carefully before attempting to assemble, install, operate or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference. Operating Operating Instructions Instructions and and Parts Parts Manual Manual

2 RMW D version Hollow shaft pump ø 7/ Pos Part # RMWG RMWG8 RMWG0 Pos RMWG SRMWG Oil O-Ring Øx Jet O-Ring Ø8.7x.78 Detergent injector Outlet extension Piston Piston Ring Thrust washer Bearing Thrust washer Hollow shaft Hollow shaft Hollow shaft Rear bearing Circlip Øi7 Seal O-Ring Ø.x.78 Bushing O-Ring Øx Suction extension / NH Qty. ( in/lbs) ( in/lbs) Description Seal Plug /8 G - Brass Pump housing Head bolt M8x Head bolt M8x RMWGB AR OIL CAPACITY -. OZ Part # 0 Legend 7 ( in/lbs) Qty. RMWG0 Nut M Grub screw Mx Handle insert Plate spring Valve piston O-Ring Ø.0x. O-Ring Ø.07x.78 Ring Piston guide O-Ring Øx.78 O-Ring Ø0.8x.78 By-pass jet Seat O-Ring Ø9x Grub screw Mx Hose nipple O-Ring Ø.8x.78 Ball Grub screw M0x Ball East start seat Plug Complete valve Pump head - Aluminum Pump head - Brass Pump head - Brass Gasket Bushing Bushing Bushing Description

3 () Oil Seals Kit Unloader Kit () () () 7() () 8() 8() 0() () () O-Rings () Kit 7 () 8 Valves Kit Kit Repair Kits () () 0() () 8() 8() () () () 7() O-Rings () Kit 07 Pistons Kit Kit () 9 8( Water Seals Kit Kit / ) SPRAY NOZZLE CHART RPM RMW / SRMW Plunger Pumps Nozzle # Gallons Per Minute

4 Do not alter the pump from the manufacturers design. Always wear safety glasses or goggles and appropriate clothing. Do not operate in or around an explosive environment. water only. The pump is designed to pump non- Gasoline Drive Pumps WARNINGS General Safety Information Motor Pulley Ø = Pump Pulley Ø Pump RPM Motor RPM HP loss due to altitude = % per 000 FT above sea level Pump Speed and Flow: Rated GPM = Desired GPM Rated RPM Desired RPM EBHP x 7 = GPM EBHP x 7 = GPM GPM x = EBHP 7 = (GPM/Nozzle #) x 000 Horse Power: GPM x = Hydraulic HP 7 GPM= Nozzle # x 000 Nozzle # = GPM x 000 Nozzles: Impact ce (lbs.) =.0 x GPM x mulas Conversions Maximum water temperature is 0 F. in speed or pressure. ventilation. Do not operate gasoline engines in a Never point the high-pressure discharge at a person, any part of the body or animals. Do not allow children to operate the pump. Gallons x.78 = Liters Gallons x 8 = Oz. x.089 = Bar Bar x.08 = inches =. millimeters Liters x. = Gallons (US) Ft. Lbs. x. = Newton Meters Inch Lbs. x.98 = Newton Meters Newton Meters x.77 = Ft. Lbs. (force) Newton Meters x 8.8 = In. Lbs. (force) Temperature =.8(C ) = F,.(F - ) = C U.S. Gallon of freshwater = 8. lbs. =. feet of water =.0 inches of mercury Foot of water =. Foot of water =.88 inches of mercury Meter of water =.8 feet of water Kilograms x. = Lbs. Notes

5 Cavitation or sucking air Pulley loose on crankshaft Broken or worn bearing Worn packing and/or cracked plunger Humid air condensing into water inside the crankcase Water in crankcase Loud knocking noise in pump Worn main bearing from excessive tension on drive belt Bad bearing Excessive play in the end of the crankshaft pulley Worn crankshaft seal or improperly installed oil seal o-ring Stuck inlet or discharge valve Inlet restrictions and/or air leaks. Slight leak, oil leaking in the area of crankshaft Worn inlet, discharge valve blocked or dirty Worn packing or cracked plunger Worn packing. Abrasive in pumped in cavitation. Inadequate water Possible Cause(s) Water leakage from under manifold Pump runs extremely rough, pressure very low Symptom Troubleshooting (cont.) Replace bearing Check key and tighten set screw Check water supply is turned on Replace packing. Replace plunger Change oil intervals Replace crankcase bearing and/or tension drive belt Replace bearing Remove oil seal retainer and replace damaged 0-ring and/or seals Install new packing or plunger Replace worn valves Clean out foreign material Replace inlet and discharge valve manifold must be limited to lifting less than 0 feet of water or 8. psi vacuum Corrective Action Bearings: Oversized ball bearing stabilizes the crankshaft and one needle style thrust Drive End Packing and Plungers: Dual seal system. High Pressure Packing and Low-Pressure Seals: U cup double lip Buna-N for a good positive seat. Support and Guides: Special anti-wear plastic, -piece construction to assure proper plunger alignment, maximize packing and seal life and prevent plunger wear and damage. Plungers: Solid hardened stainless steel, strong and durable. Valves: Ultra m Cages: Durable, strong, and long life. Poppets and : 0 series stainless steel. Valve Seat: Brass with an external sealing o-ring on both inlet and discharge valves. Valve Caps: Machined brass for greater strength. repair using a cartridge replacement kit. Bolts: Three bolts, mm grade 8.8. Manifold: ged Brass: Strength and no porosity - long life. Higher hydrostatic pressures - safety. Unloader: Integral trap Wet End Special Features guns etc. Use only components that are rated for the Adequate protective guards must cover all moving parts. Perform routine maintenance on the pump and components. (This pump has an unloader already built in). All positive displacement plunger pumps must have a safety relief valve installed on the discharge side of the pump, this valve could be either an unloader or regulator and must be of General Safety Information (continued) increased. Design: Wet End Repair: Very simple no special tools required. Valve Design: Each pump series has a valve Dyno Proven: All pumps are dyno tested to assure the theoretical design meets the actual design. Extra Features Ports: Inlet Port: Is supplied with a standard brass garden hose connection with inlet strainer. Discharge Port: Is supplied with /8 M connection. Accessory Ports: All models have a / F port on the inlet side of the manifold. Oil Capacity:. oz. Oil Seals and O-rings: All are constructed of Buna-N rubber. The oil seals have stainless steel garder springs to assure constant tension on the sealing surface. Crankshaft/Wobble Plate: Precision diecat to assure proper stroke, duration and alignment. housing retains the crankshaft bearing, oil seal and rear wobble plate bearing support washer. Crankcase: Precision die-cast, with cooling bearing absorbs the plunger load and assures long radial plate life.

6 Install all four () bolts and tighten evenly. Install the appropriate water inlet and discharge Connect the water supply hose and high-pressure discharge hose/spray gun. Turn on the water supply. Open the spray gun to purge the system of any air. Start the engine. If necessary adjust the engine speed and unloader valve Figure Align the two key ways and push the pump completely onto the engine. Using a needle nose pliers remove the. Figure Install the valve seat O-ring squarely into the bottom of the manifold. Insert the valve assembly squarely into the port pushing it into the O-ring... Figure Remove the valve seat O-ring and inspect for any damage.. Assembly: Inspect for any debris that may be lodged between the poppet and seat.. Use a small probe to move the poppet up Figure and down to assure that it is functioning properly. Inspect the valve cap O-ring for any damage, replace if necessary... Remove the valve cap. Discharge Valves: Disassembly: Servicing the Valves. Frequent or premature failure of the packing Service Pumps Install the shaft key into the keyway and apply a light coating of anti-seize on the engine shaft and key.. Low pressure (cont.) Low pressure ates Low pressure at nozzle Pump looses prime, chattering noise, pres- Pump fails to prime Pump runs but produces Possible Cause(s) Air leak in inlet plumbing Relief valve stuck, partially plugged or improperly adjusted valve seat worn Belt slippage Worn nozzle Packing worn Worn packing or valves Valves worn or blocked by foreign bodies Incorrect or worn nozzle Unloader valve is by-passing Clogged suction strainer Air leak in suction hose or inlet Air is trapped inside pump Pump is not primed Running pump dry pumped Excessive pressure and/or Overpressure to inlet manifold pumped Cracked, damaged or worn plunger Worn rod oil seals Installation Symptom Oil leak between crankcase and pumping section Troubleshooting Clean and adjust relief valve; check for worn or dirty valve seats Disassemble, reseal and reassemble Tighten or replace with correct belt Replace with nozzle of proper size Replace packing Clean or replace valves Replace packing or valves nozzle is worn, replace Make sure nozzle is matched to the Make sure unloader is adjusted property and by-pass seat is not leaking Clean strainer Remove suction line and inspect it for a loose liner or debris lodged in hose. Avoid all unnecessary bends. Do not kink hose Disconnect discharge hose from pump. Flood suction hose, restart pump and run pump until all air has been evacuated Flood suction then restart pump Do not run pump without water temperature; be sure they are within plumbing Reduce inlet pressure Replace plungers Replace crankcase piston rod seals Corrective Action

7 (9) (9) Drain all of the water out of the pump. Run a 0% solution of a RV or nontoxic/biodegradable antifreeze.. Winter or Long Time Storage NOTE: No other oil is factory approved for this pump. Using any other oil may result in Drive End Damage. ounces. Specially formulated for the demands of the RMW / SRMW pump. See parts breakdown. Do NOT change oil. Use oil only to add if low. Oil Head Valve Cap Torque Ratings Inch Pounds (ft.lbs.) High-Pressure Seals Support Rings Low-Pressure Seals Piston Guide O-rings Piston Guides - which usually house the low-pressure seal many factors. Water seals should be replaced when water leak or a loss of performance is noticed. Prompt replacement of worn seals will insure peak operating performance and trouble free operation. The water seals and their respective components sometimes referred to as the packing stack, will vary slightly between models. But the constant between models is that the packing stack will consist of the following items: Flush the pump with fresh water before the next use. In freezing conditions failure to do this may cause internal pump damage. long periods of storage in nonfreezing areas the solution will keep the seals and O-rings lubricated.... through the pump. ) Install the valve cap and torque to the proper... Using a reversible pliers, carefully remove the packing retainers (plunger guides). (See. Figure 7 Figure Inspect for any debris or damage. Figure 0 Pull out the valve cage/head ring assembly, Figure 9 valve poppet, spring and O-ring. Remove the high-pressure re packing by pulling straight ht NOTE: You do not want to Figure 8 damage these so they can be reused if not worn. Remove low pressure seals, insert screwdriver under seal lip and lift Remove the manifold... Inlet Valves: Disassembly:. Service Pumps (Continued) Remove the valve O-ring Figure Figure Figure Insert the low pressure seal by placing it into the cylinder in at an angle and pushing it into place. (See at NOTE: The O-ring will seat just inside the manifold and you will hear a slight pop. Push it completely into place.(see ) the cylinder. Lubricate the packing retainer O-ring NOTE: of the packing is pointed at you. Install the high-pressure packing by placing it into d the cylinder at an angle and Figure then pushing into place. Insert the valve assembly and push squarely into the Install the valve seat O-ring g squarely q y into the bottom of the manifold. Assembly: 7.

8 Carefully install the manifold and torque the bolt to the proper 8. ) Figure of Remove the head bolts. Insert small pry bars between the head and body at opposite corners and apply pressure down on one pry bar and up on.. NOTE: It is important to make note of the order in which the components of the packing stack are arranged and facing during disassembly. head of the pump. To access the water seals for inspection or Packings: Disassembly: Servicing the Packings/Seals Valve life is dependant on many variables. Hard water, cavitation, corrosion, chemicals and equipment care. The valves are a wear item and need periodic Figure replacement. Worn O-rings or damaged valves will cause pressure loss and pulsations. (See Table C or parts breakdown) Put a thin coat oil on the plungers and 7. Service Pumps (Continued) Remove low pressure seals insert screwdriver under seal lip and lift up. (See Figure 9) Remove the piston guides from the head by using a reverse plier (preferably rubber coated) inserted into the center of the piston guide. Use a back and forth twisting motion while pulling up (clockwise and counterclockwise). Another method is to use a two-prong slide hammer puller. Insert the prongs into the piston guide allowing the prongs to grab under the support ring then use the Figure 9 Figure 8 To remove any components that stay on the plungers simply twist back and NOTE: The packing stacks will not always stay in the head of the pump when it is Figure 7 removed. Sometimes one or more components of the packing stack will come out of the head and stay on the plunger. Lift the head up and away from the body... Figure ) Remove the highpressure packing by pulling straight out... Figure the cylinder. Push it completely into Lubricate the packing retainer O-ring pointed at you. NOTE: The point of the V Figure Place the highpressure seal at an angle and work it into the cylinder. (See Figure ) NOTE: packing support is part of the valve cage. Install the high-pressure seal into the head. Assembly: 9. NOTE: Damage to Figure 0 the piston guides and or the seals may occur during removal. Inspect carefully before reusing any components of the packing stack. slide hammer to pull the packing stack up and out of the head. (See Figure 0) Service Pumps (Continued) Carefully install the manifold and torque the bolt to the proper. Figure Figure Figure NOTE: Water seals are wear items. Life of the seals is dependent on Valve life is dependant on many variables. Hard water, cavitation, corrosion, chemicals and equipment care. The valves are a wear item and need periodic replacement. Worn O-rings or damaged valves will cause pressure loss and pulsations. (See Figure ) Put a thin coat of oil on the plungers and nd packings. (See Figure ) Insert the low-pressure seal by placing it into the cylind cylinder n er in at an angle and pushing it into place. (See Figure ).. NOTE: The O-ring will seat just inside the manifold and you ou will hear a slight pop. p Figure place. (See Figure )