K&T 3.532-757.0 Service Handbook Download | Manualshive

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Service Handbook

High-Pressure

Washer Pump

3.532-785.0

10.00

Pump 785 9/28/01 3:06 PM Page 1

www.mymowerparts.com

For Karcher Pressure Washer Parts Call 606-678-9623 or 606-561-4983

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Summary of Contents for 3.532-757.0

Page 1: ...Service Handbook High Pressure Washer Pump 3 532 785 0 10 00 Pump 785 9 28 01 3 06 PM Page 1 www mymowerparts com For Karcher Pressure Washer Parts Call 606 678 9623 or 606 561 4983...

Page 2: ...Pump 785 9 28 01 3 06 PM Page 2 www mymowerparts com For Karcher Pressure Washer Parts Call 606 678 9623 or 606 561 4983...

Page 3: ...re manual to find a solution to a problem This manual identifies four basic ways the pump may malfunction Find the section that defines the malfunction of the pump Turn to that section s overview page...

Page 4: ...ressure valve slide 55 Safety relief valve 54 Ball bearing 53 Ball bearing seat 52 Spring 51 Pump head bolt 4 50 High pressure valve cap 3 37 Retainer nut 47 High pressure valve plate 3 48 High pressu...

Page 5: ...and detergent filter 36 If the spray nozzle on the spray wand is set for high pressure operation the hole in the nozzle insert 24 does not create any Swash Plate Assembly The three pistons 13 are dri...

Page 6: ...1 piston 5 553 383 0 1 spring 5 332 425 0 1 valve seat 5 581 242 0 1 valve seat o ring 6 362 169 0 1 threaded spindle 5 305 274 0 1 18 Bushing 5 110 630 0 1 19 High pressure seal 6 365 432 0 3 20 Pump...

Page 7: ...reservoir vent cap 31 Detergent check valve 32 O ring 33 Ball bearing 34 Spring 17 Pressure volume control knob 18 Bypass valve 19 Bushing 30 Water inlet filter 25 Low pressure check valve basket 3 56...

Page 8: ...Pull out bypass valve inset figure 3 4 Inspect bypass valve for damage and lubrication Inadequate lubrication will cause valve to hang up 5 Inspect O rings for nicks or cuts Replace if necessary 6 Gr...

Page 9: ...iers figure 7 3 Check the valve for wear debris and pitting Note If any one low pressure valve is damaged all three valves should be replaced 4 Lightly grease O rings with silicone grease 5 Reassemble...

Page 10: ...l reservoir vent cap 31 Detergent check valve 32 O ring 33 Ball bearing 34 Spring 17 Pressure volume control knob 18 Bypass valve 19 Bushing 30 Water inlet filter 25 Low pressure check valve basket 3...

Page 11: ...alve if necessary B weep holes High Pressure Seals 1 Remove 4 pump head bolts using 6mm allen wrench figure 12 2 Remove pump head 3 Carefully remove the 3 high pressure seals figure 13 4 Check seals a...

Page 12: ...ct O ring on bushing 6 Apply silicone grease to seal 7 Place bushing back on piston Circulation holes must line up with weep holes figure 19 12 SECTION 2 WATER LEAK SOLUTIONS C weep holes Low Pressure...

Page 13: ...eck valve basket 3 56 Water outlet bolt 4 13 Piston 3 46 High pressure valve seat 3 38 Thermal relief valve 20 High pressure seal 3 6 Oil drain plug 39 Low pressure oil seal 3 40 Seal retaining ring 3...

Page 14: ...pump head See Section 2 figure 12 Re install two of the pump head bolts with a 1 2 shim composed of washers or a metal sleeve about 3 8 in diameter into two diagonally opposing weep holes of piston g...

Page 15: ...l seal on shaft is worn out call 1 800 KARCHER 3 To remove oil seal push shaft through swash plate 3 Pull out piston guide assembly figure 23 4 Inspect forward O ring and seal Replace if necessary 5 R...

Page 16: ...ermal relief valve 20 High pressure seal 3 6 Oil drain plug 39 Low pressure oil seal 3 40 Seal retaining ring 3 41 Bushing seal 3 42 Bushing 3 45 High pressure valve slide 55 Safety relief valve 54 Ba...

Page 17: ...wear and damage 4 Check that opening through nozzle is not clogged Clear opening if necessary A Pump Not Drawing Detergent or Water Exiting Detergent Tube 1 Check that nozzle is in low chemical positi...

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