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Motor Description

Working principle

BB and BBC series motors are rotary-housing. This means the motor shaft and the

cylinder block remain in place while the motor is running.

Figure 2. The main components of the motor.

Shaft

Distribution valve

Cylinder block

Piston

Cam roll

Cam ring

Bearings

Housing

Hub

10. Shaft sealing

The rotation of the motor is achieved by feeding pressurized hydraulic fluid through

the motor shaft to the distribution valve. The distribution valve directs the flow to the

pistons which are on a power stroke. Pressure pushes the pistons and cam rolls

outwards against the cam ring on the housing. The waveform of the cam ring

transforms the force into torque. When the pistons reach the end of the power stroke,

the distribution valve closes the flow to the pistons and switches the pistons to a

return stroke.The cam ring pushes the pistons back into the cylinder block preparing

them for the next outward power stroke.

Figure 3. Flow to the pistons.

Figure 4. Cylinder block, cam ring and pis-

tons.

3.1

Motor Description

Product Manual

Содержание BB 4

Страница 1: ...Product Manual BB and BBC series ...

Страница 2: ... Mechanical freewheeling 27 3 9 1 speed motors 28 3 10 Multi speed motors 29 3 11 Seal protector and grease nipples 31 3 12 Brakes 31 3 12 1 Static wet multi disc brake for BBC and BB series motors 31 3 12 2 Double brake for BBC series motors 32 4 System Design 33 4 1 Motor hydraulic circuit 33 4 1 1 Simple connection 33 4 1 2 Counter pressure operation 33 4 1 3 Hydrostatic braking 34 4 1 4 Short ...

Страница 3: ...3 BB motors case leakage 62 5 3 4 BBC motors case leakage 63 6 Installation Instructions 64 6 1 Conditions of installation and application 64 6 2 Mounting the motor 64 6 3 Flushing the hydraulic system 64 6 4 Hydraulic connections 65 6 5 Air bleeding procedure 65 6 6 Commissioning procedure 65 6 7 Tightening torques 66 7 Operating Instructions 67 7 1 Break in period 67 7 2 Use 67 7 3 Operating tem...

Страница 4: ...e used in other applications that need torque for rotary movement Warranty Check the package and the product for transport damage when receiving goods The package is not meant for long term storage protect the product appropriately Do not dismantle the product The warranty is void if the product has been disassembled The manufacturer is not responsible for damages resulting from misinterpreted non...

Страница 5: ...Publication date 26 04 2019 This manual is published Declaration of incorporation 1 5 1 6 General Instructions Product Manual 5 ...

Страница 6: ...gnetic lifting devices Always use the lifting equipment properly and check the load bearing capacity Prevent unintended use of the motor during installation and maintenance procedures by preventing pressurization of the hydraulic lines The operating temperature of the motor may be over 60 ºC 140 F which is hot enough to cause severe burns Beware of hot hydraulic fluid when disconnecting the hydrau...

Страница 7: ...ft to the distribution valve The distribution valve directs the flow to the pistons which are on a power stroke Pressure pushes the pistons and cam rolls outwards against the cam ring on the housing The waveform of the cam ring transforms the force into torque When the pistons reach the end of the power stroke the distribution valve closes the flow to the pistons and switches the pistons to a retu...

Страница 8: ...1600 ccm rev 200 2000 ccm rev BB 6 displacements 250 2500 ccm rev 315 3150 ccm rev 400 4000 ccm rev BB 7 displacements 500 5000 ccm rev 630 6300 ccm rev Y Freewheeling 40DVVVYW40 BB 4 BB 5 BB 6 BB 7 Hydraulic freewheeling 1 Mechanical freewheeling 2 W Multi speed option 40DVVVYW40 BB 4 BB 5 BB 6 BB 7 Fixed displacement 1 2 speed 2 CW rotation 2 speed 3 CCW rotation Code example 4051602140 40DVVVYW...

Страница 9: ... 02 displacements 3 862 ccm rev 5 1018 ccm rev 1 909 ccm rev BBC 03 displacements 3 1111 ccm rev 5 1313 ccm rev 1 1572 ccm rev BBC 05 displacements 3 1922 ccm rev 5 2271 ccm rev W Multi speed option CDVWE1Y0AA BBC 02 BBC 03 BBC 05 1 speed 1 Fixed displacement 2 speed 2 100 50 displacement 4 speed 7 100 75 50 25 dis placement E Brake option CDVWE1Y0AA BBC 02 BBC 03 BBC 05 Without brake 0 Static wet...

Страница 10: ...4190 5240 6540 8380 intermittent 2825 3590 4490 5610 7180 Max operating power kW at full displacement 35 50 at half displacement 21 30 Max rotating speed rpm at full displacement 240 185 200 160 125 at half displacement 360 275 300 240 185 at freewheeling 600 500 Min rotating speed rpm 2 2 Max working pressure bar peak pressure 350 350 intermittent 1 300 300 Max case pressure bar average 2 2 inter...

Страница 11: ...eeling 400 350 Min rotating speed rpm 2 2 Max working pressure bar peak pressure 450 450 intermittent 1 400 400 Max case pressure bar average 2 2 intermittent 1 10 10 Pilot pressure for internal valve bar valve released 0 2 0 2 valve engaged 15 30 2 15 30 2 Max flow rate l min at full displacement 350 500 at half displacement 225 325 Spring operated wet multi disc brake parking brake brake torque ...

Страница 12: ... 2 Max working pressure bar peak pressure 450 450 400 450 450 400 intermittent 1 400 400 350 400 400 350 Max case pressure bar average 2 2 intermittent 1 10 10 Pilot pressure for internal valve bar valve released 0 2 0 2 valve engaged 15 30 2 15 30 2 Max flow rate l min at full displacement 157 187 at half displacement 112 132 Spring operated wet multi disc brake parking brake brake torque min Nm ...

Страница 13: ...142 at half displacement 244 200 169 at 1 4 displacement 326 266 226 at freewheeling 400 Min rotating speed rpm 2 Max working pressure bar peak pressure 450 450 400 intermittent 1 400 400 350 Max case pressure bar average 2 intermittent 1 10 Pilot pressure for internal valve bar valve released 0 2 valve engaged 15 30 2 Max flow rate l min at full displacement 270 at 3 4 disp 242 at half displaceme...

Страница 14: ...ure over 30 bar is used the pilot line should be throttled 3 Brake torque for new brake Motor interfaces Main dimensions BB series motors with static multi disc brake L2 L1 ØD1 Figure 5 Main dimensions of the motor MAIN DIMENSIONS BB 4 BB 5 BB 6 BB 7 Motor L1 mm 420 469 480 550 L2 mm 265 282 320 382 D1 mm 278 342 408 512 3 6 3 6 1 Motor Description 14 Product Manual ...

Страница 15: ...in dimensions of the motor MAIN DIMENSIONS BBC 02 BBC 03 BBC 05 Motor L1 mm 254 268 298 L2 mm 233 241 259 D1 mm 282 315 376 BBC series motors with static multi disc brake L2 L1 ØD1 Figure 7 Main dimensions of the motor Motor Description Product Manual 15 ...

Страница 16: ...igure 8 Main dimensions of the motor MAIN DIMENSIONS BBC 02 BBC 03 Motor L1 mm 353 364 L2 mm 267 274 D1 mm 360 360 Shaft interfaces The motor is attached to the body of the vehicle or device from the shaft flange The hydraulic connections of the motor are located on the plane surface of the shaft flange 3 6 2 Motor Description 16 Product Manual ...

Страница 17: ...2 9 tightening tor que 2 Nm 330 330 650 650 D2 min 3 mm 114 150 170 220 D3 min 4 mm 165 200 240 300 R1 max mm 1 1 1 1 C1 mm 4 10 4 10 4 10 4 10 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given 3 Free space for hydraulic connections ...

Страница 18: ...tening tor que 2 Nm 330 330 650 D2 min 3 mm 135 150 166 D3 min 4 mm 200 216 240 R1 max mm 1 1 1 C1 mm 4 10 4 10 4 10 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given 3 Free space for hydraulic connections 4 Recommended feature to su...

Страница 19: ... 9 tightening tor que 2 Nm 330 330 650 D2 min 3 mm 135 150 166 D3 min 4 mm 200 216 240 R1 max mm 1 1 1 C1 mm 4 10 4 10 4 10 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given 3 Free space for hydraulic connections 4 Recommended featur...

Страница 20: ...ng tor que 2 Nm 330 330 D2 min 3 mm 135 150 D3 min 4 mm 200 216 R1 max mm 1 1 C1 mm 4 10 4 10 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given 3 Free space for hydraulic connections 4 Recommended feature to support and center the mo...

Страница 21: ...f the hub screws There are multiple different type of fastening screws for hub interface Select the hub screws according to the wheel rim design Figure 13 Hub fastening screw variants BB series motors with static multi disc brake ØD2 ØD3 V1 ØD1 Figure 14 Dimensions of the hub interface 3 6 3 Motor Description Product Manual 21 ...

Страница 22: ...m 1x45 1x45 1x45 1x45 D3 min mm 278 342 408 512 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given The wheel rim or the rotatable device is attached to the motor hub BBC series motors without brake ØD2 ØD3 V1 ØD1 Figure 15 Dimensions ...

Страница 23: ...3 min mm 282 315 376 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given The wheel rim or the rotatable device is attached to the motor hub BBC series motors with static multi disc brake ØD2 ØD3 V1 ØD1 Figure 16 Dimensions of the hub i...

Страница 24: ...1x45 D3 min mm 282 315 376 1 Strength class as in ISO898 1 If using lower strength class check interface load capacity and tightening torque 2 Declared values are for reference only Always use application specific tightening torques when given The wheel rim or the rotatable device is attached to the motor hub BBC series motors with double brake ØD2 ØD3 V1 ØD1 Figure 17 Dimensions of the hub interf...

Страница 25: ...n specific tightening torques when given The wheel rim or the rotatable device is attached to the motor hub Rotating direction Figure 18 Rotating direction of the motor The rotating direction of the motor is defined as the rotating direction of the housing viewed from the hub to the shaft The rotating direction of the BB motor and the flow direction in the working lines is given in the table below...

Страница 26: ...vement Hydrostatic freewheeling Hydrostatic freewheeling requires a drain line check valve with 0 5 bar 8 psi opening pressure and active feed between the check valve and the drain port of the motor A check valve in the drain line regulates the pressure in the case To limit the pressure spikes in the case the drain line and its check valve have to be sized to correspond with the maximum flow rate ...

Страница 27: ...e change USING THE FREEWHEELING When the motor is depressurized and not rotating the motor will disengage automatically The motor disengagement during motion is done with a freewheeling valve The freewheeling valve can be a separate external valve which connects the working lines A and B and the case drain line C together The purpose of the valve is to remove pressure difference over the motor pis...

Страница 28: ...ulic fluid from the working lines to the casing of the motor This causes always a small delay when disengaging the motor Normal delay is about 1 2 seconds To minimize the disengaging delay the hydraulic fluid should have as open channel as possible The external freewheeling valve should be positioned as close to the motor as possible All components and lines which connect the working lines to the ...

Страница 29: ...t maximum rated power in both directions In 2 speed BB and standard 2 speed BBC motors a 15 30 bar control pressure to Y port is required to activate 2 speed partial displacement of a 2 speed motor Depressurizing the Y port will return the motor to full displacement Do not use work high pressure in Y port to control a standard 2 speed BB or BBC motor BBC 05 4 speed motors have high pressure shift ...

Страница 30: ...in flow rate may cause momentary jerk This may be avoided by throttling the working lines lightly Prevent operating conditions in which the permissible performance values could be exceeded The permissible performance values are in the technical data see Technical data BB series on page 10 and Technical data BBC series on page 12 Attention Continuous use of high working pressure in the working line...

Страница 31: ...BB series motors The spring applied pressure to release wet multi disc brake is a parking brake but it can be used dynamically as an emergency brake For the minimum brake release pressure refer to Technical data BB series on page 10 and Technical data BBC series on page 12 The brake operating pressure in BBC low pressure brake can not be higher than 30 bar Depending on the Black Bruin frame size t...

Страница 32: ...ssure to release parking brake A dynamic multi disc brake Pressure applied spring release service brake The ultimate brake for the most demanding conditions Cooling through flushing for dynamic use Well sealed structure isolating the brake from the environment and the motor from the brake Figure 26 BBC motor s double brake 3 12 2 Motor Description 32 Product Manual ...

Страница 33: ...freewheeling The case pressure of the motor may rise significantly if the motor is completely plugged during use Note Using the motor on a closed loop hydraulic system is different from the open loop system The closed loop system is more complex but enables more functions such as hydrostatic braking series connection and counter pressure operation Counter pressure operation Counter pressure operat...

Страница 34: ...king lines When an external load is rotating the motor the hydraulic pressure may increase indefinitely This leads to danger if a hydraulic hose or component brakes under high pressure Short circuit operation Short circuit operation means connecting the return flow of the motor directly to the feed line of the motor Short circuit operation is needed if the motor must be rotated faster than the hyd...

Страница 35: ... brake Figure 29 The interface of the motor hydraulics with the double brake C2 Y C1 A B Figure 30 The hydraulic connections of a 2 speed BBC motor without a brake C Y D A B Figure 31 The hydraulic connections of a 2 speed BB motor with a brake 4 2 System Design Product Manual 35 ...

Страница 36: ...he case drain line is marked with C Motors with case flushing line C1 have a case drain line marked with C2 The case drain line is used for case drain and returning flush oil To ensure motor functionality C1 line has to be either plugged or used for flush flow in C2 is always used for case drain flow out Do not use C1 as case drain line BRAKE PRESSURE PORTS D D2a and D2b The motors with parking br...

Страница 37: ...ectly as possible to the working line ports A and B There are multiple possibilities for the external freewheeling valve Some examples of these possibilities are described in this chapter MECHANICAL FREEWHEELING CHECK VALVE MECHANICAL FREEWHEELING 2 2 VALVE Min 3 bar A B C2 C1 Figure 34 Motor with mechanical free wheeling external freewheeling valve and check valve Min 3 bar A B C2 C1 Figure 35 Mo...

Страница 38: ...G OPEN LOOP A B C2 C1 Figure 36 Motor with mechanical free wheeling and external freewheeling valve closed loop Min 3 bar A B C2 C1 0 5 bar Figure 37 Motor with hydrostatic free wheeling and external freewheeling valve open loop System Design 38 Product Manual ...

Страница 39: ...free wheeling valve in open loop system Maxi mum case drain pressure 2 bar Hydraulic fluid Motors in parallel or series circuit The traction of a vehicle may be increased by connecting multiple motors in parallel or in series A single powered wheel may transmit only a certain amount of power to traction By dividing the power to multiple wheels the vehicle gets more traction This is advantageous es...

Страница 40: ...rdinary flow divider valve can not be used in most cases because its resistance of flow increases too much as the speed of the vehicle increases The flow distribution is usually required only when starting to move the vehicle A reliable solution is a flow divider valve which can be bypassed or switched on when necessary Figure 41 A pilot controlled flow divider valve SERIES CIRCUIT Figure 42 Two m...

Страница 41: ... index can decrease during operation Note Temperature has a significant effect on the viscosity and the lubricating capability of the hydraulic fluid Take into consideration the real operating temperature when defining the fluid viscosity The need for service and the overall service life may be improved by using hydraulic fluids with higher viscosity In addition higher viscosity may improve the ru...

Страница 42: ...mum allowed pilot pressure is 350 bar Attention Over 30 bar pilot pressure causes case pressure peaks This effect should be minimized with an orifice in the pilot line Recommended orifice size is 1 mm Working line pressure WORKING PRESSURE The working pressure is the high pressure that generates the output torque of the motor The following values for the working pressure are in the technical data ...

Страница 43: ...he charge pressure is usually used as the minimum pressure In open loop hydraulic system the charge pressure may be done by a suitable pressure reducing valve Attention Too low pressure in the working lines causes the pistons to disconnect from the cam ring when the motor is running The effect of this is clattering noise when the pistons reconnect Constant use with too low working line pressure ma...

Страница 44: ...r Figure 43 The minimum pressure at full displacement fluid vis cosity 35 cSt Flow rate l min WORKING LINE PRESSURE bar Figure 44 The minimum pressure at half displacement fluid vis cosity 35 cSt Flow rate l min System Design 44 Product Manual ...

Страница 45: ...BBC series motors WORKING LINE PRESSURE bar Figure 45 The minimum pressure at full and half displacement fluid viscosity 35 cSt Flow rate l min System Design Product Manual 45 ...

Страница 46: ... motor shaft interface The load charts of the motors are given as a function of offset value The given load curves refer to the average wheel load on a single motor CL a mm Figure 46 Measurement of the wheel offset a Attention The motor load carrying capacity is applicable when the C or C2 port is orientated to the load direction excluding the 4 speed motors Figure 47 Motor orientation to the load...

Страница 47: ... 4 BB 5 BB 6 BB 7 Fmax α x Fr 5 3 x r x Fa Fmax α x Fr 4 6 x r x Fa Fmax α x Fr 4 0 x r x Fa Fmax α x Fr 3 4 x r x Fa BBC series motors BBC 2 BBC 3 BBC 5 Fmax α x Fr 5 62 x r x Fa Fmax α x Fr 5 41 x r x Fa Fmax α x Fr 4 45 x r x Fa Dynamic factor α constant loading at low speed α 1 variable loading α 1 1 5 shock loads or high speed for 70 km h or 45 mph α 1 4 2 BB series motors MOTOR LOAD CURVE BB...

Страница 48: ...Service life The service life of the motor is based on the rated life of its bearings The bearings load curve gives the wheel load value which the motors endures for 10 million rotations with 90 reliability The service life may be estimated with the following equation L10h nominal service life h RPM rotating speed rpm Fr average wheel load kN F10m bearing load carrying capacity kN 5 1 3 Motor Sizi...

Страница 49: ...acity F10m Wheel off set a mm BEARINGS LOAD CURVE BB 6 and BB 7 Load kN Figure 53 Bearing load carrying capacity F10m Wheel off set a mm BBC series motors BEARINGS LOAD CURVE BBC 02 and BBC 03 Load kN Figure 54 Bearing load carrying capacity F10m Wheel off set a mm Motor Sizing Product Manual 49 ...

Страница 50: ...uired flow rate may be calculated with the following equations ROTATING SPEED or RPM rotating speed rpm KMH vehicle speed km h MPS vehicle speed m s R wheel radius mm V displacement ccm Q flow rate in working lines l min or FLOW RATE Note Due to motor dynamics a constant smooth operating speed of under 2 rpm may be difficult to achieve 5 2 5 2 1 Motor Sizing 50 Product Manual ...

Страница 51: ...ed rpm Figure 57 Vehicle freewheeling speed and motor rotating speed with different wheel radius speed km h speed m s Torque The output torque of the motor is generated by the pressure difference of the working lines pressure difference between ports A and B The output torque of the motor may be estimated with the following equations 5 2 2 Motor Sizing Product Manual 51 ...

Страница 52: ... flow rate in working lines l min RPM rotating speed rpm V displacement ccm pw working pressure bar or Note Rough estimate of the operating power may be checked by dividing the available hydraulic power between the motors Performance charts BB motors performance curves BB 4 Torque Nm Figure 58 Perfomance curves BB 4 630ccm fluid viscosity 35cSt Max power 35 kW Max speed 240 rpm Speed rpm Charge pr...

Страница 53: ...id viscosity 35cSt Max power 35 kW Max speed 185 rpm Speed rpm Charge pressure bar BB 5 Torque Nm Figure 60 Perfomance curves BB 5 1000ccm fluid viscosity 35cSt Max power 50 kW Max speed 200 rpm Speed rpm Charge pressure bar Motor Sizing Product Manual 53 ...

Страница 54: ...fluid viscosity 35cSt Max power 50 kW Max speed 160 rpm Speed rpm Charge pressure bar Torque Nm Figure 62 Perfomance curves BB 5 1600ccm fluid viscosity 35cSt Max power 50 kW Max speed 125 rpm Speed rpm Charge pressure bar Motor Sizing 54 Product Manual ...

Страница 55: ...m fluid viscosity 35cSt Max power 90 kW Max speed 175 rpm Speed rpm Charge pressure bar Torque kNm Figure 64 Perfomance curves BB 6 2500ccm fluid viscosity 35cSt Max power 90 kW Max speed 140 rpm Speed rpm Charge pressure bar Motor Sizing Product Manual 55 ...

Страница 56: ...id viscosity 35cSt Max power 90 kW Max speed 110 rpm Speed rpm Charge pressure bar BB 7 Torque kNm Figure 66 Perfomance curves BB 7 4000ccm fluid viscosity 35cSt Max power 130 kW Max speed 125 rpm Speed rpm Charge pressure bar Motor Sizing 56 Product Manual ...

Страница 57: ...luid viscosity 35cSt Max power 130 kW Max speed 100 rpm Speed rpm Charge pressure bar Torque kNm Figure 68 Perfomance curves BB 7 6300ccm fluid viscosity 35cSt Max power 130 kW Max speed 80 rpm Speed rpm Charge pressure bar Motor Sizing Product Manual 57 ...

Страница 58: ... BBC 02 705ccm fluid viscosity 35cSt Max power 42 kW Max speed 223 rpm Speed rpm Charge pressure bar Torque Nm Figure 70 Perfomance curves BBC 02 862ccm fluid viscosity 35cSt Max power 42 kW Max speed 182 rpm Speed rpm Charge pressure bar 5 3 2 Motor Sizing 58 Product Manual ...

Страница 59: ...id viscosity 35cSt Max power 42 kW Max speed 151 rpm Speed rpm Charge pressure bar BBC 03 Torque Nm Figure 72 Perfomance curves BBC 03 909ccm fluid viscosity 35cSt Max power 50 kW Max speed 206 rpm Speed rpm Charge pressure bar Motor Sizing Product Manual 59 ...

Страница 60: ...fluid viscosity 35cSt Max power 50 kW Max speed 169 rpm Speed rpm Charge pressure bar Torque Nm Figure 74 Perfomance curves BBC 03 1313ccm fluid viscosity 35cSt Max power 50 kW Max speed 143 rpm Speed rpm Charge pressure bar Motor Sizing 60 Product Manual ...

Страница 61: ...cm fluid viscosity 35cSt Max power 72 kW Max speed 172 rpm Speed rpm Charge pressure bar Torque Nm Figure 76 Perfomance curves BBC 05 1922ccm fluid viscosity 35cSt Max power 72 kW Max speed 141 rpm Speed rpm Charge pressure bar Motor Sizing Product Manual 61 ...

Страница 62: ...2271ccm fluid viscosity 35cSt Max power 72 kW Max speed 119 rpm Speed rpm Charge pressure bar BB motors case leakage l min Figure 78 Case leakage curves of BB series motors fluid viscos ity 35 cSt Pressure bar 5 3 3 Motor Sizing 62 Product Manual ...

Страница 63: ...BBC motors case leakage l min Figure 79 Case leakage curves of BBC series motors fluid vis cosity 35 cSt Pressure bar 5 3 4 Motor Sizing Product Manual 63 ...

Страница 64: ... size and length The fastening screws should be cleaned and oiled lightly before installing them Use threadlocker only if necessary removing the old threadlocker may be difficult Remove any old threadlocker before mounting the motor Note When replacing fastening screws with new ones renew all of the screws Attention When using stud bolts do not tighten the bolt Tightening of the stud bolt is done ...

Страница 65: ...ystem charge pressure or flow through the case drain line Unscrew the air bleed screw by half a turn and wait for the air to bleed out Close the screw when only hydraulic fluid is pouring through it Note If charge pressure is not available open loop or return flow through drain line is prevented fill the case manually by pouring oil in through the bleed screw hole Commissioning procedure Ensure th...

Страница 66: ...premature wear or failure of the motor Note During all installation and service procedures plug any open ports and hoses When filling the reservoir add hydraulic fluid through a filter Tightening torques SCREW HARDNESS HUB COVER f10 9 Nm SHAFT FLANGE f12 9 Nm M12 110 135 M14 180 215 M16 275 330 M18 383 460 M20 540 650 M22 728 874 The tightening torques are valid for standard and fine thread Note T...

Страница 67: ... which the motors are completely submerged in water or mud Operating temperature The operating temperature means the internal temperature of the motor Take into considerations the following requirements for the operating temperature For improved service life avoid over 70 C 158 F operating temperature The highest permissible intermittent operating temperature is 85 C 185 F The lowest permissible o...

Страница 68: ... Protect the cleaned motor from corrosion If possible drain all the hydraulic fluid from the motor Note Dispose of hydraulic fluid should be done appropriately Operating Instructions 68 Product Manual ...

Страница 69: ...ids alkalis and salts The motor should not be exposed to strong magnetic fields The motor should not be exposed to strong vibration Note For long term storage over 9 months the following additional actions are recommended Damages to surface paint must be repaired Protect the unpainted surfaces with suitable anti corrosion treatment Fill the motor completely with hydraulic fluid If these instructio...

Страница 70: ...SKYLÄ FINLAND www blackbruin com info blackbruin com All the information contained in this publication is based on the latest information available at the time of publication Black Bruin Inc reserves the right to make changes without prior notice EN 20190426 ...

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