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Danfoss H1F 080, Руководство по обслуживанию

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Danfoss H1F 080 Скачать руководство пользователя страница 24

Motor operates normally in one direction only

Check

Cause

Corrective action

1.

Charge pressure

If charge pressure is low in one direction, the loop
flushing shuttle spool may be sticking to one side.

Measure charge pressure in forward and reverse. If
pressure drops significantly lower in one direction,
inspect and repair loop flushing shuttle spool.

Improper output speed

Check

Cause

Corrective action

1.

Oil level in reservoir

Insufficient hydraulic fluid may reduce system
efficiency.

Fill reservoir to proper level.

8.

Internal leakage

Excess internal leakage may cause lower charge
pressure and affect motor performance including
output speed.

Install loop flushing defeat option and measure case
flow. If case flow is excessive, motor may require major
repair. Contact your Danfoss authorized service
center.

H1F Low output Torque

Check

Cause

Corrective action

8.

Internal leakage

Excess internal leakage may cause charge pressure
to decay, reducing output torque.

Install loop flushing defeat option and monitor case
flow. If case flow is excessive, motor may require major
repair. Contact your Danfoss authorized service
center.

Service Manual

H1F Bent Axis Fixed Displacement Motors, Size 080

Troubleshooting

 

24 | 

©

 Danfoss | December 2023

AX465363259664en-000102

Содержание H1F 080

Страница 1: ...Service Manual H1F 080 H1F Bent Axis Fixed Displacement Motor www danfoss com...

Страница 2: ...visions Date Changed Rev December 2023 Updated title 0102 November 2023 First edition and next various changes 0101 Service Manual H1F Bent Axis Fixed Displacement Motors Size 080 2 Danfoss December 2...

Страница 3: ...arameters H1F output speed 17 H1F system pressure 17 Case pressure 17 External shaft seal pressure 18 Temperature 18 Fluid and filter maintenance Fluid and filter recommendations 19 Pressure measureme...

Страница 4: ...bly 29 H1F Loop Flushing Charge Relief Removal 29 Torque chart H1F Fasteners plugs with torque chart 30 Service Manual H1F Bent Axis Fixed Displacement Motors Size 080 Contents 4 Danfoss December 2023...

Страница 5: ...ware that hydraulic fluid may be under high pressure and or hot Inspect the outside of the motor and fittings for damage Cap hoses after removal to prevent contamination Keep it clean Cleanliness is a...

Страница 6: ...re in the system before removing hoses fittings gauges or components Never use your hand or any other body part to check for leaks in a pressurized line Seek medical attention immediately if you are c...

Страница 7: ...and transport modes i e wheel loader mobile crane drill rigs winches harvestors SAE Cartridge and DIN flange with radial or axial high pressure port configurations are available Loop flushing is also...

Страница 8: ...EDC 4 Charge Pump 5 Charge Check High Pressure Relief Valve 6 Loop Flushing Valve 7 Pressure Limiter Valve 8 Charge Pressure Relief Valve 9 Servo Cylinder 10 Charge Pressure Filter 11 Heat Exchanger 1...

Страница 9: ...schematic above shows the function of a hydrostatic transmission using an H1 axial variable displacement pump with electric proportional displacement control EDC and an H1 fixed displacement motor wit...

Страница 10: ...l at rated speed l min US gal min 320 84 5 at max speed 400 105 7 Theoretical torque at max displacement N m bar lb in 1000 psi 1 27 777 Theor corner power at rated speed and max working pressure p 45...

Страница 11: ...psi Max delta 480 bar 6962 psi Max abs 510 bar 7397 psi Min low loop 7 5 bar 109 psi Case pressure Rated 3 bar 44 psi Maximum 5 bar 73 psi Minimum 0 3 bar 4 psi Ambient temperature1 Maximum 70 C 158...

Страница 12: ...the oil to drain down and be replaced with air in the rotating group The minimum pressure in the inlet port and the outlet port must be equal or higher as shown in the tables H1F Required inlet press...

Страница 13: ...g n 1000 v Qe Vg p mh 20 Me Qe p t 600 Me n 9550 Pe n Qe 1000 v Vg Vg n 231 v Qe Vg p mh 2 Me Vg n p t 396 000 P e n Qe 231 v Vg Where Qe Input flow l min Me Output torque N m Pe Output power kW n Spe...

Страница 14: ...e system pressure to flow to the loop flushing relief valve Legend A System loop A B System loop B LFRV to loop flushing relief valve P003 437 A B L2 W Warning Unintended vehicle or machine movement h...

Страница 15: ...ith a cracking pressure of 16 bar 232 psi Valves are available with several orifice sizes to meet the flushing flow requirements of all system operating conditions A loop flushing defeat option is ava...

Страница 16: ...al Information BC152886482203 H1F speed sensor position Sensor position in cartridge housing Cartridge housing H1F Target Ring Speed target rings vary according to the diameter of the cylinder block o...

Страница 17: ...nt to hold the machine in place when full power is applied H1F system pressure System pressure is the differential pressure between high pressure system ports It is the dominant operating variable aff...

Страница 18: ...ttest point in the transmission which is normally the motor case drain The system should generally be run at or below the published rated temperature The maximum intermittent temperature is based on m...

Страница 19: ...st fluid change occur at 500 hours of operation Change the fluid more frequently if it becomes contaminated with foreign matter dirt water grease etc or if the fluid is subjected to temperature levels...

Страница 20: ...ap System split flange boss ports A B Code 62 per ISO 6162 Type 1 Port Size 080 A B 1 in Thread M12 x 1 75 min 24 mm 0 94 in Ports and gauge Information Port Size 080 Pressure obtained L1 L2 M22 x 1 5...

Страница 21: ...ar 0 1000 psi pressure gauge in the charge pressure gauge port of the pump to monitor the charge pressure during start up For open circuit systems use gauges in system ports 8 Disconnect any external...

Страница 22: ...cycle slowly between forward and reverse for at least five minutes 18 Shut down prime mover 19 Remove gauges Replace plugs at the gauge ports 20 Check reservoir level Add filtered fluid if needed The...

Страница 23: ...hing flow Restricted orifice in loop flushing cartridge reduces flow Measure case drain flow Clean or replace orifice cartridge 4 Loop flushing shuttle Loop flushing shuttle may be sticking in one dir...

Страница 24: ...leakage Excess internal leakage may cause lower charge pressure and affect motor performance including output speed Install loop flushing defeat option and measure case flow If case flow is excessive...

Страница 25: ...and grime 2 If removing the motor tag each hydraulic line connected to the motor If you disconnect hydraulic lines plug each open port to keep dirt and contamination out of the motor 3 Inspect the sys...

Страница 26: ...4 Cover the shaft splines with shaft cover or packing tape to avoid damaging the seal during installation 5 Install front cover G0025 into housing G0010 6 Using snap pliers install retaining ring G00...

Страница 27: ...mm 0 2 in 45 5 15 mm 100 mm 3 94 in 69 mm 2 6 in 58 mm 2 3 in 0 10 0 0 0 20 in 0 004 0 0 150 mm 5 90 in 70 mm 2 76 in 5 mm 0 2 in 45 5 4 mm 100 mm 3 94 in 56 mm 2 2 in 48 mm 1 9 in 0 10 0 0 0 21 in 0...

Страница 28: ...H1F speed sensor reassembly Speed sensor assembly J0020 J0010 J0041 1 Lubricate and install new O ring J0041 2 Install speed sensor J0010 3 Install screw J0020 using a 5 mm internal hex wrench with t...

Страница 29: ...hing reassembly K0040 QK040 K0010 K0050 QK050 1 Lubricate and install spool K0010 2 Lubricate and install springs K0020 3 Lubricate and install new O rings QK040 QK050 4 Install plugs K0040 K0050 usin...

Страница 30: ...nd torque chart Options Frame size Description Wrench size Torque J0020 80 Speed sensor screw 5 mm internal hex 8 N m 6 lbf ft F0120 80 Endcap screw 10 mm internal hex 111 N m 82 lbf ft Plug size and...

Страница 31: ...foss Power Solutions US Company 2800 East 13th Street Ames IA 50010 USA Phone 1 515 239 6000 Danfoss Power Solutions Trading Shanghai Co Ltd Building 22 No 1000 Jin Hai Rd Jin Qiao Pudong New District...

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