SERVICE MANUAL MODEL # HD 3.0/27 G HD3.0/27 GB HD 3.4/35 G HD 3.3/35 GB HD 4.0/40 G HD 4.0/40 GB HD 4.0/40 Ge HD 4.0/40 GeB ORDER # 1.107-270.0 1.107-271.0 1.107-272.0 1.107-273.0 1.107-274.0 1.107-275.0 1.107-276.0 1.107-277.0 9.801-760.
CONTENTS Exploded View (Models:HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge) ..................................................................................... 4 Exploded View Parts List (Models:HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge).................................................................5-6 Exploded View (Models:HD3.0/27 GB, HD 3.3/35 GB, HD 4.0/40 GB, HD 4.0/40 GeB) .......................................................................................
PRESSURE WASHER SERVICE MANUAL EXPLODED VIEW HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge 36 35 For Detail See Pump Assy 17 18 22 23 41 19 20 3 21 34 5 42 33 1 40 39 38 4 6 40 2 14 23 15 16 7 24 8 9 25 10 11 12 9 13 30 31 32 26 27 28 27 29 4 9.801-760.0 • Rev.
HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge ITEM PART NO. QTY 8.924-115.0 Al Base Direct Drive CW 1 2 8.924-394.0 Al Handle CW 1 3 8.924-393.0 Al Bumper CW 1 4 8.924-233.0 9.803-097.0 Axle, 5/8" x 21.750" Long CW (HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge) Axle, 5/8 X 20.125 Long (HD 3.0/27 G) 1 1 5 8.924-072.0 8.924-179.0 AL Spacer Tube DD Frame CW (HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge) AL Spacer Tube DD Frame (HD 3.0/27 G) 2 2 6 8.711-898.
SERVICE MANUAL PRESSURE WASHER EXPLODED VIEW PARTS LIST HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40 Ge ITEM PART NO. DESCRIPTION QTY 38 8.755-187.0 Grommet, Rubber, Nozzle Holder Base 3/16 5 39 8.712-337.0 8.712-345.0 8.712-338.0 8.712-346.0 8.712-339.0 8.712-347.0 8.712-340.0 8.712-348.0 8.712-398.0 Nozzle, SACQMEG, 0003.5, Red (HD 3.0/27 G, HD 3.4/35 G) Nozzle, SAQCMEG 0004, Red (HD 4.0/40 G, HD 4.0/40 Ge) Nozzle, SAQCMEG 1503.5, Yellow (HD 3.0/27 G, HD 3.
EXPLODED VIEW PRESSURE WASHER For Models: HD3.0/27 GB, HD 3.3/35 GB, HD 4.0/40 GB, HD 4.0/40 GeB 19 18 20 For Detail See Pump Assy SERVICE MANUAL 23 22 28 60 33 25 30 26 38 36 32 27 31 37 10 34 35 55 42 54 39 56 44 5 62 9 3 1 43 58 2 9 56 57 23 9 4 6 7 29 59 24 12 53 11 15 10 17 51 45 41 61 20 13 14 15 16 52 8 50 46 49 21 47 48 9.801-760.0 • Rev.
SERVICE MANUAL PRESSURE WASHER EXPLODED VIEW PARTS LIST ITEM PART NO. DESCRIPTION QTY 1 8.924-117.0 Al Base Belt Drive CW 1 2 8.924-394.0 Al Handle CW 1 3 8.924-393.0 Al Bumper Flat End CW 1 4 8.924-089.0 8.631-285.0 Axle CW Base AL 23" Long (HD 3.3/35 GB, HD 4.0/40 GB, HD 4.0/40 GeB) Axle, Dia .625, Frame, 21" l (HD 3.0/27 GB) 1 1 5 8.924-072.0 8.924-121.0 AL Spacer Tube DD Frame CW (HD 3.3/35 GB, HD 4.0/40 GB, HD 4.0/40 GeB) Al Spacer Tube BD Frame CW (HD3.0/27 GB) 1 1 6 8.
DESCRIPTION QTY 1 2 1 9.802-415.0 8.715-695.0 8.715-697.0 Belt, BX35 (HD 3.0/27 GB) Belt, BX34 ( HD 4.0/40 GB) Belt, BX36 (HD3.3/35 GB) 35 9.802-402.0 Bushing, H x 24mm (HD 3.3/35 GB, HD 4.0/40 GB, HD 3.0/27 GB) 1 36 9.803-897.0 9.802-399.0 Bushing, H X 3/4 (HD3.0/27 GB) Bushing, H X 1 (HD 3.3/35 GB, HD 4.0/40 GB) 1 1 37 8.755-200.0 Nut,# 10 Spring ST BLK` 7 38 8.924-119.0 AL Front Beltguard Short BD CW (For All Belt Drive Models) 1 39 8.755-214.0 Screw,10-24X3/4 7 40 8.718-608.
SERVICE MANUAL PUMP ASSEMBLY EXPLODED VIEW 4 Position of Pump protector on GB and GeB models 2 PRESSURE WASHER 2 6 5 3 12 For G and Ge models 1 13 11 10 9 8 7 6 8 PUMP ASSY EXPLODED VIEW PARTS LIST ITEM 1 PART NO. 8.754-751.0 8.750-755.0 8.755-216.0 8.754-756.0 8.754-758.0 8.750-753.0 DESCRIPTION QTY Pump, Leuco LB3030R, 3.0@3000, 1650 RPM (HD 3.0/27 GB) Pump, Leuco LM3540R.3 3.5@ 4000 1850RPM (HD 3.3/35 GB) Pump, Leuco LM3840R.3, 3.8@4000 1740 RPM (HD 4.
PRESSURE WASHER LB3030R PUMP EXPLODED VIEW 8.754-751.0 LB3030R 26 26 48 27 28 44 29 43 30 42 31 22 41 34 32 40 47 39 33 46 38 37 45 36 14 25 24 13 22 21 12 20 16 17 18 Item # Ft.-lbs 15 65 18 55 26 8 36 10 44 10 23 6 19 5 4 3 1 2 29 7 8 31 35 27 26 9 10 15 14 13 12 SERVICE MANUAL TORQUE SPECS 15 11 LB3030R PUMP PARTS LIST ITEM PART NO. DESCRIPTION QTY ITEM PART NO. DESCRIPTION QTY 1 8.754-841.0 Crankcase 1 26 9.802-939.
KIT DESCRIPTION ITEM NUMBERS INCLUDED NUMBER OF CYLINDERS KIT WILL SERVICE 8.754-856.0 8.754-857.0 8.754-858.0 8.754-859.0 9.803-937.0 Plunger Seals 16 mm Seal Packing 16 mm Plunger 16 mm Complete Valve Plunger Oil Seals 4, 6, 8 4, 5, 6, 7, 8 36, 37, 38, 39 12, 13, 14 3 3 1 1 6 3 PRESSURE WASHER SERVICE MANUAL REPAIR KIT NUMBER 12 9.801-760.0 • Rev.
PRESSURE WASHER LM.3 SERIES PUMP EXPLODED VIEW 8.750-755.0 LM3540R.3 8.755-216.0 LM3840R.3 SERVICE MANUAL TORQUE SPECS Item # Ft.-lbs 14 75 15 18 23 6 33 6 43 6 48 6 PUMP PARTS LIST ITEM PART NO. DESCRIPTION Crankcase DESCRIPTION QTY 1 30 9.803-140.0 Crankshaft Seal 1 31 9.803-178.0 Shim 2 8.717-209.0 QTY ITEM PART NO. 1 8.751-216.0 2 See Kits Below Plunger Oil Seal 3 3* See Kits Below O-Ring Ø1.78 x 31.
PRESSURE WASHER SERVICE MANUAL 3 3 14 9.801-760.0 • Rev.
PRESSURE WASHER LP 3035G PUMP EXPLODED VIEW 8.754-756.0 LP3035G Item # Ft.-lbs 15 65 16 55 24 8 37 10 38 10 45 10 SERVICE MANUAL TORQUE SPECS LP3035R PUMP PARTS LIST ITEM PART NO. DESCRIPTION QTY ITEM PART NO. DESCRIPTION QTY 1 8.751-216.0 Crankcase 1 28 9.802-914.0 Snap Ring, 25 mm 1 O-ring Ø1.78 X 72.75 2 8.754-846.0 3 29 9.803-955.0 Bearing, Ball 1 3* See Kits Below Plunger Oil Seal 3 30 8.754-834.0 Shaft, 3/4" Hollow (3035G) 1 4* See Kits Below O-ring Ø1.
KIT DESCRIPTION ITEM NUMBERS INCLUDED NUMBER OF CYLINDERS KIT WILL SERVICE 8.754-856.0 8.754-857.0 8.754-858.0 8.754-859.0 9.803-937.0 Plunger Seals 16 mm Seal Packing 16 mm Plunger 16 mm Complete Valve Plunger Oil Seals 4, 6, 8 4, 5, 6, 7, 8 36, 37, 38, 39 12, 13, 14 3 3 1 1 6 3 PRESSURE WASHER SERVICE MANUAL REPAIR KIT NUMBER 16 9.801-760.0 • Rev.
8.754-758.0 LP3535G1 TORQUE SPECS Ft.-lbs 15 65 16 55 24 8 37 10 38 10 45 10 SERVICE MANUAL Item # PRESSURE WASHER LP 3035G1 PUMP EXPLODED VIEW LP3535G1 PUMP PARTS LIST ITEM PART NO. DESCRIPTION QTY ITEM PART NO. DESCRIPTION QTY 1 8.751-216.0 Crankcase 1 28 9.802-914.0 Snap Ring, 25 mm 1 2 8.754-846.0 O-ring Ø1.78 X 72.75 3 29 9.803-955.0 Bearing, Ball 1 3* See Kits Below Plunger Oil Seal 3 30 8.754-828.0 Shaft, 1" Hollow 1 8.754-219.
KIT DESCRIPTION ITEM NUMBERS INCLUDED NUMBER OF CYLINDERS KIT WILL SERVICE 8.754-860.0 8.754-861.0 8.754-862.0 8.754-859.0 9.803-937.0 Plunger Seals 14 mm Seal Packing 14 mm Plunger 14 mm Complete Valve Plunger Oil Seals 4, 6, 8 4, 5, 6, 7, 8 36, 37, 38, 39 12, 13, 14 3 3 1 1 6 3 PRESSURE WASHER SERVICE MANUAL REPAIR KIT NUMBER 18 9.801-760.0 • Rev.
PRESSURE WASHER LS 4040G PUMP EXPLODED VIEW 8.750-753.0 LS4040G TORQUE SPECS Ft.-lbs 14 75 15 30 24 7.6 38 10 46 7 56 13 SERVICE MANUAL Item # LS4040G PUMP PARTS LIST ITEM PART NO. DESCRIPTION QTY ITEM PART NO. DESCRIPTION QTY 1 33 9.803-161.0 Needle Roller Bearing 1 See Kit Below Plunger Oil Seal 3 34 8.751-230.0 Gasket 1 See Kit Below O-Ring 1.78 x 31.47 3 35 8.717-544.0 Screw, Set 1 See Kit Below Pressure Ring 3 36 9.803-183.0 Engine Flange 1 9.803-240.
KIT DESCRIPTION ITEM NUMBERS INCLUDED NUMBER OF CYLINDERS KIT WILL SERVICE 8.725-358.0 8.725-359.0 8.933-023.0 9.802-603.0 9.802-609.0 Plunger U-Seal 15 mm Complete U-Seal Packing 15 mm Plunger 15 mm Complete Valve Plunger Oil Seals 3, 5, 7 3, 4, 5, 6, 7 46, 47, 48, 49, 50, 51 11, 12, 13 2 3 1 1 6 3 PRESSURE WASHER SERVICE MANUAL REPAIR KIT NUMBER 20 9.801-760.0 • Rev.
8.750-297.0, 8 GPM, 2320 PSI 8.750-298.0, 8 GPM, 3630 PSI 8.750-299.0, 8 GPM, 4500 PSI ITEM PART NO. 20 1 18 8.750-713.0 Knob, Unloader 1 8.750-709.0 Repair Kit, VRT3, 2320/3630 PSI 8.750-710.0 Repair Kit, VRT3, 4500 PSI (Kit Items: 1, 4, 8-12, 16, 21-22) 9 18 10 SERVICE MANUAL 8.750-712.
SERVICE MANUAL PRESSURE WASHER TROUBLESHOOTING For Models: HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40Ge PROBLEM POSSIBLE CAUSE SOLUTION LOW OPERATING PRESSURE Insufficient water supply. Closed faucet. Inlet hose kinked Use larger garden hose; clean inlet water screen. Open faucet. Clogged inlet hose strainer Check plumbing system for leaks. Retape leaks with teflon tape. Faulty or mis-adjusted unloader valve Adjust unloader for proper pressure. Install repair kit when needed.
PROBLEM POSSIBLE CAUSE SOLUTION ENGINE OPERATES FOR 15 MINUTES THEN STOPS Not enough gas or engine oil Fill tank with gas. Check oil level. Vapor lock developed by heat of day Keep gas tank full to avoid vapor locking. Obstruction in fuel filter Clean or replace fuel filter. ENGINE LACKS POWER Dirty air filter Replace air filter. ENGINE FALTERS Choke is opened too soon Move choke to halfway position until engine runs smoothly.
PRESSURE WASHER Troubleshooting Guide PREVENTATIVE MAINTENANCE For Models: HD 3.0/27 G, HD 3.4/35 G, HD 4.0/40 G, HD 4.0/40Ge 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. Attention to regular preventative maintenance procedures will assist in preserving the performance of your equipment. Contact your dealer for maintenance.
PROBLEM POSSIBLE CAUSE SOLUTION LOW OPERATING PRESSURE Faulty pressure gauge Install new gauge. Insufficient water supply Use larger supply hose; clean filter at water inlet. Old, worn or incorrect spray nozzle Match nozzle number to machine and/or replace with new nozzle. Belt slippage Tighten or replace; use correct belt. Plumbing or hose leak Check plumbing system for leaks. Re-tape leaks with teflon tape. Faulty or mis-adjusted unloader valve Adjust unloader for proper pressure.
SERVICE MANUAL PRESSURE WASHER TROUBLESHOOTING For Models: HD3.0/27 GB, HD 3.3/35 GB, HD 4.0/40 GB, HD 4.0/40 GeB PROBLEM POSSIBLE CAUSE SOLUTION WATER OR OIL LEAKING FROM BOTTOM OF PUMP A small amount of leaking is normal If excessive leaking occurs, call local distributor. PRESENCE OF Water sprayed at machine WATER IN PUMP OIL Change oil. Direct spray away from machine. High humidity in air Check and change oil twice as often. Piston packing worn. Oil seal worn. Call local distributor.
POSSIBLE CAUSE SOLUTION SPRAY WAND LEAKS Spray wand not properly attached Slide the spray wand into the gun. Turn the wand collar clockwise onto the spray gun threads until tight. Broken o-ring Call local distributor and order an o-ring. Pump is sucking air Check that hoses and fittings are air tight. Turn off machine and purge pump by squeezing trigger gun until a steady flow of water emerges through nozzle. PUMP IS NOISY PREVENTATIVE MAINTENANCE HD3.0/27 GB, HD 3.5/35 GB, HD 4.0/40 GB, HD 4.
KNA, Inc.4555 Airport Way Denver, CO 80239 Form #9.801-760.0 • Rev. 03/16 Printed in U.S.A.
