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2. The table shows the acceptable pump charge pressure range for some charge relief valve settings.

These pressures assume 1500 min¯¹ (rpm) and a reservoir temperature of 50°C [120°F], and are

referenced to case pressure.

Charge pressure relief valve

Charge pressure gauge port M3

K90
Adjusting screw

K10
Lock nut

Case drain port L1

52 N•m [39 lbf•ft]

G
B
t

0 - 10 bar [0 - 100 psi]
1 1/16-12
115 N•m [85 lbf•ft]

0 - 50 bar [0 - 1000 psi]
9/16-18
23 N•m [17 lbf•ft]

P106 162E

See appropriate table

Listed pressures assume a pump speed of 1500 min

-1

(rpm). At higher pump input speeds (with

higher charge flows) the charge pressure will rise over the rated setting.

Charge pressure ranges

Model code

Measured charge pressure*

18.1 – 21.7 bar
[262 –315 psi]

22.0 – 26.9 bar
[319 – 390 psi]

25.8 – 30.7 bar
[37.4 – 44.5 psi]

* This is the actual charge pressure port gauge reading minus the case pressure port gauge reading.

3. Earlier production Series T90 pumps have a shim adjustable charge pressure relief valve. Shim kits are

available from Danfoss. Remove the plug using a 1in hex wrench and exchange shims behind the

spring to adjust charge pressure. Torque plug to 68 N•m [50 lbf•ft].

4. Later production Series T90 pumps have an external screw-adjustable charge pressure relief valve.

Loosen locknut (K10) and turn the adjusting screw (K90) using a screwdriver or 1/2 in. hex wrench to

adjust charge pressure setting.

Lock nut wrench size

Frame size

Wrench size

055 – 100

1-1/16 inch

5. Clockwise rotation of the plug increases the setting and counterclockwise rotation decreases the

setting (at a rate of approximately 3.9 bar [50 psi] per turn). Torque lock nut to 52 N•m [39 lbf•ft].

6. Once you achieve the desired charge pressure setting, remove the gauges and plug the ports.

Service Manual

Series T90 Axial Piston Pumps

Adjustments

30 |

Danfoss | March 2020

AX216086485386en-000101

Содержание T90 Series

Страница 1: ...Service Manual Series T90 Axial Piston Pumps www danfoss com ...

Страница 2: ...Revision history Table of revisions Date Changed Rev March 2020 1st editiom 0101 Service Manual Series T90 Axial Piston Pumps 2 Danfoss March 2020 AX216086485386en 000101 ...

Страница 3: ...90 MDC solenoid override valve operation 15 Neutral start switch NSS for MDC 15 T90 HDC operation 15 T90 3 Position FNR electric control operation 15 High Current Electrical Displacement Control HCEDC 15 HCEDC Principle 15 HCEDC Operation 16 Manual OverRide MOR 16 Operating parameters T90 Input speed 18 T90 system pressure 18 T90 charge pressure 18 T90 charge inlet pressure 19 Case pressure 19 Tem...

Страница 4: ...adjustment 41 Speed sensor adjustment 42 Minor repair Standard procedures 43 Shaft seal and shaft replacement 43 Multi function valve cartridges 46 Charge pressure relief valve 48 Adding an Auxiliary pad to a pump previously without one 50 Auxiliary pad 51 Charge pump 52 Integral charge pressure filter replacement 55 Pump control cover plate 57 Displacement control orifices 57 Displacement control...

Страница 5: ...neral instructions Follow these general procedures when repairing this product Remove the unit If necessary remove the unit from the vehicle machine Chock the wheels on the vehicle or lock the mechanism to inhibit movement Be aware that hydraulic fluid may be under high pressure and or hot Inspect the outside of the pump and fittings for damage Cap hoses after removal to prevent contamination Keep...

Страница 6: ...e sufficient force to penetrate your skin causing serious injury and or infection This fluid may also be hot enough to cause burns Relieve pressure 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 Use caution when dealing with hydraulic fluid under pressure Seek medical attention immediately if you...

Страница 7: ...nsmits rotational force to the cylinder block Bearings support the input shaft at the front and rear of the pump The shaft is splined into the cylinder block A lip seal at the front end of the pump prevents leakage where the shaft exits the pump housing The spinning cylinder block contains nine reciprocating pistons A ball joint at one end connects each piston to a brass slipper Fixed clearance ho...

Страница 8: ...lipper Feedback linkage Roller bearing Cradle bearing Shaft seal Input shaft P400621 Cradle guide Swash plate Charge pump Rear bushing Cylinder block Bushing Service Manual Series T90 Axial Piston Pumps Introduction 8 Danfoss March 2020 AX216086485386en 000101 ...

Страница 9: ...n of fluid flow Basic closed circuit diagram Input PV MF Case drain line Output Flow Bi directional Reservoir P104 120E Case drain and heat exchanger The pump and motor require case drain lines to remove hot fluid from the system The topmost port drains the motor to ensure the case remains full of fluid Fluid routes through the lower drain port on the pump and out the topmost port to the reservoir...

Страница 10: ...eli ef valv e Fix ed displacement motor Output shaft Multi func tion valv e Charge pump To pump case Servo pressure relief valves Servo control cyli nder Pump swashplate Input shaft Reversiblevariabl e displacement pump Servo control cyli nder Heat exchanger Multi func tion valve Charge pressure relief valve Orificed c heck valve Control handle P102 000 Service Manual Series T90 Axial Piston Pumps...

Страница 11: ...Pump schematic P104 126E M4 M5 L2 S L1 X5 M1 M2 A B M3 Service Manual Series T90 Axial Piston Pumps Introduction Danfoss March 2020 AX216086485386en 000101 11 ...

Страница 12: ...esignated level A direct acting poppet valve relieves fluid when charge pressure reaches a certain level This level is nominally set referencing case pressure at 1500 rpm This nominal setting assumes the pump is in neutral zero flow In forward or reverse charge pressure is lower The pump model code specifies the charge relief valve setting Charge pressure relief valve Charge pressure P106 157E T90...

Страница 13: ...ressure control mechanism Servo Pres Relief Valve Charge pressure relief valve Multi function valve Multi function valve To control Servo piston Servo piston Port A Port B Bypass adjustment P104 123E For some applications such as dual path vehicles the pressure limiter function may be defeated so that only the high pressure relief valve function remains T90 system check valve operation The system ...

Страница 14: ...ration operation Filtration options R T P and L are pressure filters mounted on the pump or remotely for ease of servicing You will typically find a 100 125 µm mesh screen in the reservoir or the charge inlet This system requires a filter capable of withstanding charge pressure reference to atmosphere add case pressure Charge pressure filtration To pump case Charge pump Hydraulic fluid reservoir F...

Страница 15: ...onal to input pressure T90 3 Position FNR electric control operation This control utilizes a 12 or 24 Vdc electrically operated spool valve to port pressure to either side of the pump servo piston Energizing one of the solenoids causes the pump to go to its maximum displacement in the corresponding direction All functions of the three position FNR electric control are preset at the factory High Cu...

Страница 16: ...hed the swashplate is positioned directly proportional to the control current To minimize the effect of the control neutral deadband we recommend the transmission controller or operator input device incorporate a jump up current to offset a portion of the neutral deadband The neutral position of the control spool does provide a positive pre load pressure to each end of the servo piston assembly Wh...

Страница 17: ...P003 204 MOR Schematic diagram EDC shown C1 C2 P108758 Service Manual Series T90 Axial Piston Pumps Operation Danfoss March 2020 AX216086485386en 000101 17 ...

Страница 18: ...at or below this pressure should yield satisfactory product life Maximum pressure is the highest intermittent pressure allowed Maximum machine load should never exceed this pressure For all applications the load should move below this pressure All pressure limits are differential pressures referenced to low loop charge pressure Subtract low loop pressure from gauge readings to compute the differen...

Страница 19: ...remain 16 C 30 F above the pour point of the hydraulic fluid The minimum temperature relates to the physical properties of component materials Size heat exchangers to keep the fluid within these limits Test heat exchangers to verify that these temperature limits are not exceeded Viscosity For maximum efficiency and bearing life ensure the fluid viscosity remains in the recommended range Minimum vi...

Страница 20: ...ed to temperature levels greater than the recommended maximum Dispose of used hydraulic fluid properly Never reuse hydraulic fluid Change filters whenever the fluid is changed or when the filter indicator indicates a filter change Replace all fluid lost during filter change For detailed filtration information see Danfoss publication 520L0463 Fluids and Filtration For information on biodegradable f...

Страница 21: ...pressure Rated bar absolute in Hg vacuum 0 7 9 Minimum cold start 0 2 24 Case pressure Rated bar psi 3 0 40 Maximum 5 0 75 Parameter Unit Frame size 055 075 100 Displacement maximum cm in 55 3 35 75 4 57 100 6 10 Minimum speed min 1 rpm 500 500 500 Rated speed min 1 rpm 3500 3150 3000 Maximum speed min 1 rpm 3700 3350 3200 Maximum attainable speed at maximum displacement min 1 rpm 4000 3700 3500 T...

Страница 22: ...00 Temperature C F 40 40 104 220 115 240 Cleanliness ISO 4406 Class 22 18 13 or better Filtration efficiency suction filtration β35 44 75 β10 2 charge filtration β15 20 75 β10 10 Service Manual Series T90 Axial Piston Pumps Technical specifications 22 Danfoss March 2020 AX216086485386en 000101 ...

Страница 23: ...mmon method to disable the engine to prevent the engine from starting Crank the starter for several seconds Do not to exceed the engine manufacturer s recommendation Wait 30 seconds and then crank the engine a second time This operation helps remove air from the system lines Refill the reservoir to recommended full fluid level 8 When charge pressure reaches 3 5 bar 50 psi enable and start engine L...

Страница 24: ...18 M4 M5 Servo pressure 50 bar 1000 psi 9 16 18 L1 L2 Case pressure 10 bar 100 psi 055 100 1 1 16 12 X1 X2 HDC EDC control pressure 50 bar 1000 psi 9 16 18 X3 External control pressure 50 bar 1000 psi 9 16 18 S Charge pump inlet Vacuum gauge Tee into inlet line 055 075 1 5 16 12 100 1 5 8 12 Pump with side port end cap and manual displacement control Servo displacement cylinder pressure gauge port...

Страница 25: ...harge pump inlet port S System pressure port A P106 160E Pump with side port end cap and remote pressure filtration Pump with side port end cap and integral pressure filtration Charge pressure gauge port M3 after the filter Charge pressure gauge port M6 before the filter Charge pressure gauge port M3 back side after the filter Port E from filter Port D to filter P106 163E Service Manual Series T90...

Страница 26: ... high inspect inlet filter and replace as necessary Check for adequate line size length or other restrictions System relief pressure settings If the system relief settings are too low the relief valves will be overworked Verify settings of pressure limiters and high pressure relief valves and adjust or replace multi function valves as necessary For internal leakage in motor Leakage will reduce low...

Страница 27: ...cure control orifices are blocked Repair or replace control module as necessary System pressure Low system pressure will not provide power necessary to move load Measure system pressure Continue to next step System multi function valves Defective multi function valves will cause system to pressure to be low Repair or replace multi function valve s Low motor output torque Item Description Action Sy...

Страница 28: ... shafts cause noise Align shafts System response is sluggish Item Description Action Oil level in reservoir Insufficient hydraulic fluid causes sluggish response Fill reservoir to proper level Multi function valves pressure settings Incorrect pressure settings affects system reaction time Adjust or replace multi function valves Pump inlet vacuum High pump inlet vacuum reduces system pressure Measu...

Страница 29: ... correct filtered hydraulic fluid 7 Flush the lines before replacing the hydraulic fluid Adjustments This section offers instruction on inspection and adjustment of pump components Read through the entire related section before beginning a service activity Refer to Pressure measurement for location of gauge ports and suggested gauge sizes Charge pressure relief valve adjustment The following proce...

Страница 30: ...rge pressure port gauge reading minus the case pressure port gauge reading 3 Earlier production Series T90 pumps have a shim adjustable charge pressure relief valve Shim kits are available from Danfoss Remove the plug using a 1in hex wrench and exchange shims behind the spring to adjust charge pressure Torque plug to 68 N m 50 lbf ft 4 Later production Series T90 pumps have an external screw adjus...

Страница 31: ...screw Lock nut smaller hex nut Lock nut torque t h I 1 Install two 1000 bar or 10 000 psi pressure gauges in the high pressure gauge ports M1 and M2 Install a 50 bar or 1000 psi pressure gauge in the pump charge pressure gauge port M3 2 Start the prime mover and operate at normal speed 3 Loosen locking nut 4 Insert an internal hex wrench into the pressure adjusting screw A plastic dust plug is ins...

Страница 32: ... the plastic dust plugs if used Use the same procedure for setting the pressure limit of the other multi function valve Move or activate the control input signal in the opposite direction so that high pressure develops in the opposite side of the closed circuit Engaging the bypass function The multi function valve cartridges perform the bypass function Shut down the prime mover when engaging the b...

Страница 33: ...while rotating the adjusting screw counterclockwise increases the maximum displacement C Caution Take care in adjusting displacement limiters to avoid undesirable flow or speed conditions Re torque lock nut F212 after every adjustment to prevent an unexpected change in operating conditions and to prevent external leakage during unit operation 3 One turn of the adjusting screw changes the maximum d...

Страница 34: ...1000 psi gauge in each of the two servo gauge ports M4 and M5 Disconnect the external control input electrical connections from the control Start the prime mover and operate at normal speed 2 Use a 4mm internal hex wrench to hold the neutral adjusting screw M015 stationary while loosening the locknut M060 with a 13mm wrench 3 Observe pressure gauges If necessary turn adjusting screw M015 to reduce...

Страница 35: ... differential of 1 5 bar 22 psi or less is acceptable Achieving zero differential is usually not possible Verify neutral setting 1 If using a PWM signal to set mechanical neutral check that servo pressure differential is less than 1 5 bar 22 psi 2 To verify mechanical neutral provide current to solenoid C1 or turn neutral adjusting screw until the servo pressure differential is 3 bar 43 psi The sy...

Страница 36: ...cally assumes the appropriate position when the control is installed on the pump MDC Neutral start switch NSS adjustments The Neutral Start Switch NSS provides a means to prevent the system prime mover from starting while the pump control handle is in stroke When the control input shaft is in its neutral position the switch pin engages a slot on the eccentric cam attached to the control shaft This...

Страница 37: ...dle to neutral and re close the NSS 3 The NSS deadband must be narrow enough so the NSS will open before the unit builds 7 bar 100 psi differential system pressure in either direction Neutral start switch adjustment requirements Control shaft free play Control shaft Total control shaft rotation Control deadband neutral NSS deadband switch closed ON P104 147E Neutral start switch eccentric plug adj...

Страница 38: ...best contact between the pin and the cam on the control shaft 4 Hold the control shaft in its neutral position in the center of the control shaft free play area Locate the switch pin in the slot of the switch cam by turning the eccentric plug while checking the pin position depth in the plug When the pin engages the cam slot the pin will be at its maximum depth in the plug Hand tighten the plug lo...

Страница 39: ...lockwise CCW until it closes Turn the switch counterclockwise CCW an additional 1 4 turn 90 after the switch closes 5 Hold the switch in place and tighten the lock nut to 27 N m 20 lbf ft torque 6 With the continuity checker attached to the switch rotate the control handle or the control shaft in each direction to assure the switch opens when the control is not in the neutral position 7 If the swi...

Страница 40: ...5 G B t G B t 0 50 bar 0 1000 psi 9 16 18 12 N m 9 lbf ft 0 50 bar 0 1000 psi 9 16 18 12 N m 9 lbf ft P106 166E 1 Install a 50 bar 1000 psi gauge in each of the two servo cylinder gauge ports M4 and M5 Attach a continuity checker to the terminals of the neutral start switch 2 Energize the starter circuit and start the prime mover 3 While operating at normal speed and with the pump in its neutral z...

Страница 41: ...actory Make this adjustment on a test stand or on the vehicle machine with the prime mover operating W Warning The following procedure may require the vehicle machine to be disabled wheels raised off the ground work function disconnected etc while performing the procedure in order to prevent injury to the technician and bystanders Take necessary safety precautions before moving the vehicle machine...

Страница 42: ...wise CW by hand until it contacts the speed ring 3 Turn the sensor counterclockwise CCW 1 2 turn 180 to establish the nominal gap of 0 71 mm 0 028 inch 4 Then turn the sensor clockwise CW until the wrench flats on sensor body are positioned at a 22 angle to the pump shaft center line Most open end wrenches have a 22 handle offset 5 The final sensor position should be between 1 2 180 and 1 4 turn 9...

Страница 43: ...ins to support the pump Inspection 1 Ensure the work surface and surrounding area are clean and free of contaminants 2 Inspect the system for contamination 3 Look at the hydraulic fluid for signs of system contamination fluid discoloration foam sludge or small metal particles Reassembly 1 Before replacing the pump on the machine replace all filters and drain and fill the hydraulic system 2 Flush s...

Страница 44: ...eal carrier 3 After removing the screws the spring force on the shaft may move the seal carrier out of its bore by approximately 5 mm 1 4 inch If the seal carrier does not move from its bore pry it from its bore and or lightly tap the end of the shaft with a soft mallet 4 Remove the O ring L50 from the seal carrier and discard 5 Place seal carrier and seal in an arbor press and press out the seal ...

Страница 45: ...1 Using the arbor press press the new seal L40 into seal carrier L30 Be careful not to damage the seal If the shaft is not being replaced proceed to step 3 2 Place roller bearing assembly on new shaft and secure with the retaining ring 3 Install an installation sleeve or wrap spline or keyed end of shaft with plastic film to prevent damage to the sealing lip on the seal during installation Service...

Страница 46: ...nction valves pre 1988 contain different components See multifunction valves Pre 1988 for disassembly instructions Multi function valve removal installation P2B1 P2A1 P06 P13 P106 180E Removal 1 Remove multi function valves P2A1 and P2B1 using hex wrench listed in table Multi function valve wrench size Frame size Wrench size 055 100 1 1 4 inch 2 Remove and discard O rings P13 and P06 3 Relieve spr...

Страница 47: ... P01 Inspection Context for the current task Clean and inspect all disassembled parts Reassembly 1 Lubricate and install internal components P07 P08 P17 P16 P15 P14 P09 P11 and P12 2 Place the cartridge in a vise and press on the poppet seat P12 3 Lubricate and install new O rings P02 P06 P13 4 Install bypass actuator P03 with pressure limiter valve P01 Torque to 40 N m 30 lbf ft C Caution If pres...

Страница 48: ...f valve plug with a 1 inch hex wrench Before removing the screw adjustable relief valve plug mark the plug K90 lock nut K10 and housing to approximately maintain the original adjustment when assembling Remove the screw adjustable charge relief valve plug by loosening the lock nut with a hex wrench corresponding to the table Lock nut wrench size Frame size Wrench size 055 100 1 1 16 inch Service Ma...

Страница 49: ... K80 and spring K70 For shim adjustable valves install the shims and plug torque to 68 N m 50 lbf ft For screw adjustable valves install the plug with its lock nut aligning the marks made at disassembly and torque the lock nut to 52 N m 38 lbf ft Check the charge pressure and adjust if necessary Refer to Charge pressure adjustments Charge pressure relief valve K10 1 2 in K90 Lock nut Lock nut torq...

Страница 50: ... leave it in place If the pin comes out with the cover plate reinstall it in the geroter eccentric Ensure that a cover for left hand rotation is used See instructions included with the auxiliary pad kit Orienting the alignment pin J80 J60 J92 J95 J90 J50 J15 J30 J10 P108929 Gerotor assembly Left hand rotation outside look ing into pump Alignment pin H80 H70 Service Manual Series T90 Axial Piston P...

Страница 51: ...using Torque per the table using a criss cross pattern Auxiliary pad Removal 1 Remove the four end cap screws J80 Remove and discard special washers J70 C Caution On earlier production frame size 75 pumps with twin ports secure the end cap to the pump housing with a clamp to avoid gasket damage 2 Remove the auxiliary pad J60 and discard the O rings J50 and J90 Aux pad screw wrench size Frame size ...

Страница 52: ...00 298 N m 220 lbf ft Charge pump The following procedure shows how to remove and install a charge pump Removal 1 For pumps with an auxiliary mounting pad refer to the Auxiliary Pad instructions C Caution On earlier production frame size 75 pumps with twin ports secure the endcap to the pump housing with a clamp to avoid gasket damage 2 Remove the six screws H80 holding the charge pump cover retai...

Страница 53: ...Current charge pump configuration E101082 H80 H70 J15 J30 J40 H50 H60 H05 H40 H31 Service Manual Series T90 Axial Piston Pumps Minor repair Danfoss March 2020 AX216086485386en 000101 53 ...

Страница 54: ...ge pump rotation Do not mix charge pump parts from different production periods Always install as a complete assembly Orienting alignment pin Inlet Discharge Alignment pin Gerotor assembly Right hand rotation outside looking into pump Gerotor assembly Inlet Discharge Left hand rotation outside looking into pump Alignment pin P104 160E 1 Install the inner port plate H31 and the gerotor assembly out...

Страница 55: ...ary mounting pad always install the charge pump cover with the pad drain hole located on the same side of the end cap as the charge inlet port Refer to the section Auxiliary Pad Installation for details 12 Install the charge pump cover retainer H70 and the six internal hex screws H80 Torque the screws per the table at the right Retainer screw torque Frame size Torque 055 100 16 N m 11 85 lbf ft 13...

Страница 56: ...Failure to install the filter manifold or filter head to a sufficient depth in the end cap will result in insufficient engagement of the tube in the end cap bore This may allow unfiltered oil to bypass the filter and enter the charge system 3 While holding the filter head in the desired position tighten the swivel lock nut N20 and torque as shown in table 4 Install a new filter canister N40 per th...

Страница 57: ...of any mounting screws that are installed into through holes in the housing Pump controls cover plate P106 184E M90 x6 M1 M11 d h5 mm Seal washer location 42 180 250 cc 16 N m 12 lbf ft Displacement control orifices 1 Remove the control assembly as described in the instructions for the specific displacement control 2 Orifice plugs may be located in the control assembly at the pump housing face Rem...

Страница 58: ...in the cavity and then install the spring and spring retainer to hold the orifice check valve in position 4 Assemble the control onto the pump Refer to the instructions for the specific control Underside of an MDC module showing orifice locations P B A TB TA Orifice check valve Orifice plugs E101 086E Manual displacement control MDC Removal 1 Thoroughly clean external surfaces prior to removal of ...

Страница 59: ...e M70 and locking nut M72 with washer M71 Hold the position of the handle and torque the locking nut to 13 5 N m 10 lbf ft using an 8mm hex wrench 4 Align the control gasket and install the screws Torque the screws to 16 N m 12 lbf ft W Warning The neutral start switch neutral must be readjusted after reassembling the MDC module Install a sealing washer under the head of mounting screws that are i...

Страница 60: ...ousing align the gasket and install the screws Torque the screws to 13 5 N m 10 lbf ft Solenoid override valve removal installation P106 186E M78 x2 M75 M90 x6 M77 M76B M76C M76A M76 5 mm 5 mm 16 N m 12 lbf ft 13 5 N m 10 lbf ft Solenoid override valve for MDC with pressure released brake Removal 1 Thoroughly clean external surfaces prior to removal of valve 2 Using a 4 mm internal hex wrench remo...

Страница 61: ...92 x4 4 mm 4 mm 5 4 N m 4 lbf ft 5 4 N m 4 lbf ft Hydraulic and electric displacement controls Removal 1 Thoroughly clean external surfaces prior to removal of control 2 Using a 5 mm internal hex wrench remove the six control mounting screws M90 Remove the control M1 with orifice check valve T40 and spring T30 and control gasket M11 from housing Discard the gasket C Caution Protect exposed surface...

Страница 62: ... screws Torque the screws to 16 N m 12 lbf ft Install a sealing washer under the head of any mounting screws that are installed into through holes in the housing 3 Position FNR electric control Removal 1 Thoroughly clean external surfaces prior to removal of control 2 Using a 4 mm internal hex wrench remove the four solenoid valve mounting screws W702 Remove the solenoid valve W701 with O rings W7...

Страница 63: ...d foreign material Install a sealing washer under the head of any mounting screws that are installed into through holes in the housing 2 Install new O rings W701A and the orifice onto the solenoid valve assembly and install the solenoid valve onto the adapter plate Install screws W702 Torque to 5 4 N m 4 lbf ft FNR removal installation P106 185E M11 M90 x6 T80 T70 T50 T T30 T40 W701A M900 M1 d I5 ...

Страница 64: ...crew the speed sensor B83 from the pump housing Remove and discard the O ring B83A Reassembly 1 Install a new O ring before reinstalling the sensor 2 Reinstall the speed sensor with lock nut and O ring into the housing Adjust the gap between the sensor and the magnetic speed ring as instructed in Speed sensor adjustment page 46 and torque the sensor lock nut to 13 N m 10 lbf ft 3 If a speed sensor...

Страница 65: ... installation 4 Inspect the machined surfaces on the control and top of the pump If you find any nicks or scratches replace the component 5 Install a new gasket M11 Ensure that you install the dowel pins M303 in the housing before installing the control 6 If you removed screen D084 install a new one Install with the mesh facing outward see drawing Proper screen orientation P106 519E D084 D084 Inco...

Страница 66: ...a 5 mm internal hex wrench torque the cap screws M90 to 13 5 N m 10 lbf ft Control module removal installation M025 M1 M02 M02 5 mm 13 5 N m 10 lbf ft M90 M050 3X M050 3X D084 5 N m 4 lbf ft 4 mm 5 N m 4 lbf ft 4 mm 2 5 N m 1 8 lbf ft 3 mm M Torque sequence 2 3 4 5 6 1 Service Manual Series T90 Axial Piston Pumps Minor repair 66 Danfoss March 2020 AX216086485386en 000101 ...

Страница 67: ...3 Inspect the machined surface on the control If you find any nicks or scratches replace the component 4 Lubricate new O ring M026 using petroleum jelly and install 5 Install solenoid actuator housing with three cap screws M90 using a 4 mm internal hex wrench Torque screws to 5 N m 4 lbf ft 6 Reconnect electrical hydraulic connections and test the pump for proper operation For repair part informat...

Страница 68: ...ng screw 055 100 5 mm internal hex 16 N m 12 lbf ft M92 Solenoid valve mounting screw 055 100 4 mm internal hex 5 4 N m 4 lbf ft M98 PCP mounting screw 055 100 4 mm internal hex 5 4 N m 4 lbf ft N10 Filter reducer assembly 055 100 1 1 2 in hex 122 N m 90 lbf ft N37 Filter plug assembly 055 100 1 4 in internal hex 27 N m 20 lbf ft P2B1 P2A1 Multi function valve 055 100 1 1 4 in hex 89 N m 66 lbf ft...

Страница 69: ...tch lock nut P2B1 Multi function valve K90 Charge pressure relief valve lock nut N37 Filter plug assembly G97 End cap screw M90 Control bolt H80 Charge pump retaining screw J80 Auxilliary pad end cap screw F111 F211 Servo cylinder screw G90 End cap screw E60 Side cover screw K10 Charge pressure relief valve plug L70 Shaft seal retaining screw M85 Eccentric plug lock nut B70 B72 G50 O ring plug 9 1...

Страница 70: ...enmark Phone 45 7488 2222 Danfoss 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 Shanghai China 201206 Phone 86 21 2080 6201 Danfoss can accept no responsibility for possible errors in catalogues brochures and other printed material Danfoss reserves t...

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