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Service guide

PAHT / PAHT G pumps

PAHT 20-32 / PAHT G 20-32Product type -

Disassembling and assembling

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Содержание PAHT Series

Страница 1: ...Service guide PAHT PAHT G pumps PAHT 20 32 PAHT G 20 32Product type Disassembling and assembling hpp danfoss com...

Страница 2: ...d by the warranty Introduction Table of Contents Contents Introduction 2 1 Disassembling the pump 3 2 Inspection 9 2 1 Valve and thrust plate 9 2 2 Swash plate 9 2 3 Pistons 10 3 Assembling 11 4 Spare...

Страница 3: ...1B1108 DKCFN PI 012 E3 02 01 2016 1 Disassembling the pump 2 Loosen and remove 6 screws 1 Tools required for dismantling the pump 3 Remove mounting flange 4 Remove shaft sealing Caution Avoid scratchi...

Страница 4: ...sembling PAHT PAHT G 20 32 4 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 7 Remove O ring 8 Turn pump upside down 11 View to pistons and retainer plate 9 Loosen and remove 10 screws 10 Remove cover 12...

Страница 5: ...ssembling and assembling PAHT PAHT G 20 32 5 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 13 Remove retainer ball 14 Remove retainer 15 Remove spring 16 Remove cylinder barrel 18 Remove 1 guide pin 17...

Страница 6: ...G 20 32 6 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 19 Turn pump upside down Loosen and remove 4 screws 20 Remove port flange 21 Remove 1 guide pin 23 Loosen thrust plate from cylinder barrel 22 R...

Страница 7: ...75 521B1108 DKCFN PI 012 E3 02 01 2016 25 Remove O rings from thrust plate 27 Remove 1 guide pin from end cover plate 26 Remove backup rings from thrust plate 28 Loosen and remove screw from swash pla...

Страница 8: ...guide Disassembling and assembling PAHT PAHT G 20 32 8 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 31 Remove O ring from end cover plate 32 Remove shaft sealing from mounting flange 33 34 Pump disas...

Страница 9: ...t show any sign of wear 1 Check that surface of swash plate is smooth and without any large scratches depth more than 0 1 mm 2 Hold a ruler against surface of plate and check tightness against a light...

Страница 10: ...hes in cylinderbarrel for wear and scratches 1 Play in ball and socket joint must not exceed 0 1 mm 2 Thickness of piston shoes must be at least 4 1 mm 3 Hold a ruler against surfaces of piston shoes...

Страница 11: ...t be lubricated It is important to lubricate ALL parts to be assembled with clean filtered water Especially all PEEK parts WARNING Do not use silicone when assembling the pump Do not reuse disassemble...

Страница 12: ...108 DKCFN PI 012 E3 02 01 2016 5 Mount port flange on housing Use pin as guide 6 Mount 4 screws M8x50 7 Tighten screws to 30Nm 9 Mount 1 guide pin inside the housing on the back side of the port plate...

Страница 13: ...DKCFN PI 012 E3 02 01 2016 11 Mount backup rings on the thrust plate 13 Spray with water on cylinder barrel and thrust plate 12 Mount O rings on the thrust plate 14 Mount thrust plate on cylinder barr...

Страница 14: ...521B1108 DKCFN PI 012 E3 02 01 2016 17 Mount spring 18 Mount retainer on top of the spring 19 Spray with water and mount retainer ball 21 Spray with water and mount pistons 20 Place retainer plate on...

Страница 15: ...bling PAHT PAHT G 20 32 15 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 23 Mount 2 guide pins on endcover 25 Mount screw M8x16 24 Mount swash plate 26 Tighten screw to 30Nm 28 Spray piston shoes with...

Страница 16: ...80R9175 521B1108 DKCFN PI 012 E3 02 01 2016 29 Mount endcover on the housing 30 Mount 10 screws M8x16 31 Tighten 10 screws to 30Nm 33 Spray with water and mount O ring 32 Turn pump upside down and mou...

Страница 17: ...T PAHT G 20 32 17 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 35 Use tool and press shaft sealing into place 37 Mount spring 36 Mount metal ring 38 Mount special tool on shaft 40 Mount sealing smalle...

Страница 18: ...Service guide Disassembling and assembling PAHT PAHT G 20 32 18 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 41 Mount mounting flange 42 Mount 6 screws 43 Tighten screws to 30Nm...

Страница 19: ...Service guide Disassembling and assembling PAHT PAHT G 20 32 19 180R9175 521B1108 DKCFN PI 012 E3 02 01 2016 Finished...

Страница 20: ...1 1 Swash plate AISI 431 x x x 32 1 Screw 8 x 16 AISI 304 x x x 34 2 Pin 4 x 14 AISI 304 x x x 61 1 Cylinder barrel AISI 431 x 62 1 Spring AISI 304 x 63 1 Retainer PEEK x 64 1 Retainer ball AISI 304 x...

Страница 21: ...102 x 3 NBR x 11 1 End cover CW AISI 316 31 1 Swash plate AISI 431 x x x 32 1 Screw 8 x 16 AISI 304 x x x 34 2 Pin 4 x 14 AISI 304 x x x 61 1 Cylinder barrel AISI 431 x 62 1 Spring AISI 304 x 63 1 Ret...

Страница 22: ...1 180R9175 521B1108 DKCFN PI 012 E3 02 22 Danfoss A S High Pressure Pumps DK 6430 Nordborg Denmark 180Z0236 Tool set PAH PAHT PAHT G 20 32 Qnt Designation 1 Shaft bush topedo x 1 Press tool 1 x 1 Pres...