Hydraulic Motors - Overall Instructions
M5AS / M5ASF
Denison Vane Technology, fixed displacement
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
Table of contents
M5AS - M5ASF Denison Vane Motors
1 . START UP INSTRUCTIONS & RECOMMENDATIONS
1 . 1 . General, start up & check up .................................... 3
1 . 2 . Shaft & coupling data ............................................... 5
1 . 3 . Specific points ..................................................... 6 - 7
1 . 4 . Fluids ........................................................................ 7
1 . 5 . Seals ..........................................................................7
2 . MOTOR & CARTRIDGE EXPLODED VIEWS ....................................................................................................................... 8
3 . CONVERSIONS
3 . 1 . Disassembly / Assembly .................................... 9 to 19
3 . 1 . a Changing cartridge ..................................... 9 to 11
3 . 1 . b Changing displacement (cam ring) .................... 12
3 . 1 . c Changing shaft .......................................... 13 to 14
3 . 1 . d Assembly .................................................. 15 to 18
3 . 2 . Changing rotation ........................................... 19 to 23
3 . 3 . Changing porting orientation ......................... 24 to 26
3 . 4 . Valves ............................................................ 27 to 28
4 . KEY SHEET
4 . 1 . Key sheet ................................................................. 29
4 . 2 . Porting tables ........................................................... 30
4 . 3 . Tightening torque requirements ............................... 30
5 . SPECIAL TOOLS
5 . 1 . Seal driver - Dimensions......................................... 31
6 . COUPLINGS
6 . 1 . Female coupling dimensions ................................... 31
7 . TROUBLESHOOTING GUIDE ................................................................................................................................... 32 to 33
NOTES ....................................................................................................................................................................................... 34
WARNING .................................................................................................................................................................................. 35
2
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
M5AS - M5ASF Denison Vane Motors
Start up instructions & recommendations
1 . 1 . GENERAL :
ROTATION & PORTS INDICATION
All Parker vane motors are individually tested to provide the best quality & reliability. Modifications, conversions & repairs can only be done
by authorized dealers or OEM to avoid invalidation of the guarantee.
The motors are to be used within the design limits indicated in our sales
bulletins. Please contact Parker when tresspassing the catalogue limits.
Do not modify or work on the motor when it is under pressure.
Qualified personnel is required to assemble and set-up hydraulic devices.
Always conform yourself to the valid regulations (safety, electrical, environment...).
The following instructions are important to obtain a good service life
time from the unit.
Internal parts of the motor are lubricated by the operating fluid itself ;
therefore, preventive maintenance is limited to keep the fluid clean in
the system, and within acceptable viscosity range.
The system filters should be replaced frequently. When possible, dirt
should not be allowed to accumulate on the motor or around the shaft
seal. Check frequently that all fittings and bolts are tight at correct torque.
The rotation way and ports orientation are viewed from the shaft end.
R = CW stands for clockwise = right-hand rotation.
A inlet, B outlet
L = CCW stands for counter-clockwise = left-hand rotation.
A inlet, B outlet
N = Stands for bi-rotational, A inlet, B outlet = R (CW)
B inlet, A outlet = L (CCW)
DESCRIPTION
APPLICATIONS
The M5AS* series is a new design of vane motor. It has been designed
especially for severe duty applications which require high pressure, up
to 280 bar (4060 PSI).The 12 vanes patented cartridge allows very
low noise level whatever the speed is, a low torque ripple, and high
efficiencies.
The M5AS* single vane motor consists of five basic components :
- the housing (housing and shaft seal)
- the pressure plate (plate, ball, adaptor and screw)
- the cartridge (cam ring, rotor, vanes and springs)
- the end cap (cap and needle bearing)
- the shaft assembly (shaft, ball bearing, retaining ring and key)
The design of the Parker motors allows to change the cartridge, to
renew the motor or to change the displacement to suit altered requirements for speed or torque.
The M5AS* motor has a stiff taper or cylindrical shaft and a high load
capacity double ball bearing, and allows direct mounting on shaft (fan,
belt drive, chain drive).
For uni-directional applications, the M5AS* is fitted with an internal valve which allows smooth dynamic braking, with a very simple hydraulic
circuit, without risk of motor cavitation.
3
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
M5AS - M5ASF Denison Vane Motors
Start up instructions & recommendations
OPERATION
The cartridge is a replaceable assembly,
including cam ring, rotor, vanes and springs.
Operation of these rugged hydraulic motors is simple.
The motor shaft is driven by the rotor. Vanes, closely fitted into the
rotor slots, move radially to seal against the cam ring. The ring has
two major and two minor radial sections joined by transitional sections
called ramps. These contours and the pressures exposed to them are
balanced diametrically.
Light springs urge the vanes radially against the cam contour, assuring
a seal at zero speed, so that the motor can develop starting torque. The
springs are assisted by the centrifugal force at higher speeds. Radial
grooves and holes through the vanes equalize hydraulic forces on the
vanes at all times.
Fluid enters and leaves the motor cartridge through openings in the
side plates at the ramps. Each motor port connects the two diametrically opposed ramps.
The rotor is axially separated from the sideplate surfaces by the film of
oil. The front sideplate is clamped against the cam ring by the pressure,
maintening optimum clearance as dimensions change with temperature and pressure. A three way shuttle valve in the sideplate causes
clamping pressure in port A or B, whichever is the highest.
Materials are chosen for long life efficiency. Vanes, rotor and cam ring
are made out of hardened high alloy steels. Cast semi-steel sideplates
are chemically etched to have a fine crystalline surface for good lubrication at start-up.
The floating side plate contains a shuttle
valve wich passes the highest pressure
signal to the clamping area.
Cam ring is interchangeable with others
of different displacements.
Major arc where fluid
works to push the
vane.
START UP & CHECK UP
Side grooves and radial holes cause undervane
and overvane pressure to be equal.
Check that the assembly of the power unit is correct :
The distance between the suction pipe & the return lines in the tank
should be at its maximum.
A bevel on both suction & return lines is recommended to increase the
surface and so lower the velocity. We suggest a 45° minimum angle.
M5 velocities : inlet x < 6 m/s (x < 20 ft per sec.)
: return under pressure x < 6 m/s (x < 20 ft per sec.)
: return low pressure x < 3 m/s (x < 10 ft per sec.)
: Always insure that all return and suction lines are un der the oil level to avoid forming aeration or vortex ef fect. This should be done under the most critical situa tion (all cylinders extended for example).
Straight and short pipes are the best.
Q (l/min) Q (GPM)
V = = m/s V = = ft/s
6 x p x r
The size of the air filter should be 3 times greater than the max. instant
return flow (ex: When all the cylinders are in movement ).
A coaxial drive is recommended. For any other type of drives, please
contact Parker.
Make sure that all protective plugs & covers have been removed.
2
(cm2) 3.12 x p x r2 (in2)
4
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
M5AS - M5ASF Denison Vane Motors
Start up instructions & recommendations
PRIMING
COLD STARTING
The tank has been filled up with a clean fluid in proper conditions.
We recommend to flush the system with an external pump prior to the
start-up.
It is important to bleed the air off the circuit and the motor itself.
Manually, fill the motor housing with fluid, and connect the motor to the
circuit.
Start rotation in a jogging manner until a prime is picked up, and increase the speed from 500 to 1000 rpm.
Check that there is no leakage or air suction neither at the ports (inlet,
outlet, drain), nor at the shaft end.
If the motor does not prime properly in the first minute, or pressure can
not be obtained, it should be shut down and condition corrected.
The motor should be started at low pressure and low speed until the
fluid warms up, before running it at high pressure or speed.
The first valve on the circuit should be open to tank.
We recommend the use of air bleed off valves.
Warning : this has to be done in low pressure mode as it could create
a dangerous fluid leak. Make sure that the pressure cannot rise (open
center valve to tank, pressure relief valve unloaded ...).
When oil free of air appears, tighten the connectors to the correct torque.
1 . 2 . SHAFT & COUPLING DATA :
COUPLINGS AND FEMALE SPLINES
KEYED SHAFTS
TAPERED KEY SHAFTS
The motor should prime within a few seconds. If not, please consult the
troubleshooting guide (pages 32 & 33).
If the motor is noisy, please troubleshoot the system.
• The mating female spline should be free to oat and nd its own center. If both members are rigidly supported, they must be aligned within
0,15 TIR (0.006” TIR) or less to reduce fretting. The angular alignment
of two splines axes must be less than ± 0,05 per 25,4 radius (± 0.002”
per 1” radius).
• The coupling spline must be lubricated with a lithium molydisulde
grease, disulfide of molybdenum or a similar lubricant.
• The coupling must be hardened to a hardness between 29 and 45
HRC.
• The female spline must be made to conform to the Class 1 t as described in SAE-J498b (1971). This is described as a Flat Root Side Fit.
Parker supplies the M5AS* series keyed shaft motors with high strength
heat-treated keys. Therefore, when installing or replacing these motors,
the heat-treated keys must be used in order to ensure maximum life
in the application. If the key is replaced, it must be a heat-treated key
between 27 and 34 R.C. hardness. The corners of the keys must be
chamfered by 0,76 mm to 1,02 mm (0.03 to 0.04) at 45° to clear the
radii in the key way.
The alignment of keyed shafts must be within tolerances given for splined shafts here above.
The torque for a steel coupling and a nut, of at least grade 8.8 quality
is 80 Nm (59 ft.lbs)
SHAFT LOADS
It is compulsory to install a castle nut + cotter pin when right hand rotation and bi-rotational.
The max. permissible load values are given in the sales catalogue.
5
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
Minimum Outlet port pressure for uni-rotationnal motors
Oil Azolla ZS32 T=45°C (26 cSt)
0
1
2
3
4
5
6
7
0 10 20 30 40 50 60 70 80 90 100
P [bar]
Start up instructions & recommendations
M5AS - M5ASF Denison Vane Motors
1 . 3 . SPECIFIC POINTS :
VERTICAL MOUNT
MOTORS IN SERIES OR HIGH BACK PRESSURE
PIPE
THREADED PORTS
EXTERNAL DRAIN
When assembled vertically, always be careful to prevent any air from
being trapped in the motor housing.
Please contact Parker.
All fluid lines, either pipe, tubing or hose, must be of adequate size and
strength to assure free flow to and from the motor. An undersized inlet
line will restrict the fluid flow to the motor and prevent proper operation
by creating turbulences and aeration.
If rigid pipe or tubing is used, the workmanship must be accurate in
order to eliminate strain on the motor housing or the fluid connectors.
Sharp bends in lines should be eliminated whenever possible.
All the system piping must be cleaned with solvent or an equivalent
cleaning agent before being connected to the motor.
Do not use galvanized pipe. Galvanized coating may flake off after
continued use.
To be mounted in accordance with SAE J1926/2, ISO 6149/2 and ISO
1179.
These externally drained motors must have a drain line connected to
the center housing drain connection of sufficient size to prevent back
pressure in excess of 3.5 bar (50 PSI), returning directly to the reservoir below the surface of the oil, and as far away as possible from the
suction pipe of the pump.
It is preferable to install the center housing with the drain hole upward
to facilitate the purge of the motor.
If the motor is mounted shaft up, the drain line must have a bend above
the motor to purge it and to be sure that the shaft seal is lubricated
(see drawing).
MINIMUM REPLENISHMENT PRESSURE DURING
DECELERATION
The hydraulic circuit should be designed in a way that when switching
off the hydraulic motor, it remains supplied with fluid, without risk of
cavitation (anti-cavitation valve may be needed).
Uni rotational M5AS* Motors are fitted with an internal anti-cavitation
valve.
Necessary pressure [bar absolute] at B port of
M5AS* uni-rotational during deceleration
ISO VG 32 @ 45°C
Pressure p [bar] Absolute
B g A [l/min]
6
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
A B
M5AS - M5ASF Denison Vane Motors
Start up instructions & recommendations
Uni-rotational M5AS - M5ASF option : Anti-starve check valve
View from shaft end :
A = inlet
B = outlet
An anti-starve check valve can be screwed directly onto the B port of the uni-rotational
motors, to ensure the minimum replenishment pressure during deceleration phases
of high inertia systems (i.e. fan drive).
1 . 4 . FLUIDS :
RECOMMENDED FLUIDS
ACCEPTABLE ALTERNATE FLUIDS
VISCOSITY
VISCOSITY INDEX
TEMPERATURE
Petroleum base anti-wear R & O fluids (covered by Parker Denison HF-0
and HF-2 specifications).
Maximum catalogue ratings and performance data are based on operation with these fluids.
The use of fluids other than petroleum base anti-wear R & O fluids requires that the maximum ratings of the motor will be reduced. In some
cases, the minimum replenishment pressure must be increased.
HF-1 : non antiwear petroleum base.
HF-4 : water glycols.
HF-5 : synthetic fluids.
Max. pressure : 210 bar (3000 PSI) (HF-1, HF-4, HF-5)
Max. speed : 1500 RPM (HF-4, HF-5)
2
Max. (cold start, low speed and pressure) 2000 mm
Max. (full speed and pressure) 100 mm
Optimum (max. lifetime) 30 mm
Min. (full speed and pressure, HF-1 fluid) 18 mm
Min. (full speed and pressure,
HF-0 & HF-2 fluids) 10 mm
For cold starts, the motor should operate at low speed and pressure until
fluid warms up to an acceptable viscosity for full power operation.
90 min.
Higher values extend the range of operating temperatures and lifetime.
Max. fluid temperature (HF-0, HF-1 & HF-2) + 100° C (+212 ° F)
Min. fluid temperature (HF-0, HF-1 & HF-2) - 18° C ( - 0.4 ° F)
/s (cSt) (9400 SUS)
2
/s (cSt) (500 SUS)
2
/s (cSt) (140 SUS)
2
/s (cSt) (90 SUS)
2
/s (cSt) (60 SUS)
FLUID CLEANLINESS
WATER CONTAMINATION IN THE FLUID
1 . 5 . SEALS :
SEALS S1 : NBR (NITRILE BASE POLYMER)
SEALS S5 : FPM (FLUOROCARBON)
The fluid must be cleaned before and during operation to maintain a
contamination level of NAS 1638 class 8 (or ISO 19/17/14) or better.
Filters with 25 micron (or better, ß10 ≥ 100) nominal ratings may be adequate but do not guarantee the required cleanliness levels.
Maximum acceptable content of water :
• 0,10 % for mineral base uids.
• 0,05 % for synthetic uids, crankcase oils, biodegradable uids.
If the amount of water is higher, then it must be drained off the circuit.
For standard applications: with mineral oil and fluid temperature less than
+ 90° C (+ 194° F).
S1 seal temperature range : - 40° C to + 107° C (- 40 to + 225° F).
Use this seal type with fire resistant fluids and/or fluid temperature higher than + 90° C (+ 194° F).
S5 seal temperature range : - 29° C to + 204° C (-20 to + 400° F).
7
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
M5AS - M5ASF Denison Vane Motors
Motor & cartridge exploded views
M5ASF
Shaft assembly
Housing
Cartridge
End cap with
opposite ports
M5A - M5AS
M5A - M5AS - M5ASF
Rotor
Cam ring
Housing
End cap with
side ports
Seals
Pressure port plate
Vane
Spring
Dowel pins
8
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
M5AS - M5ASF Denison Vane Motors
Conversions
3 . 1 . DISASSEMBLY / ASSEMBLY
3 . 1 . a CHANGING CARTRIDGE :
1 . Fix the motor on the table
with 2 bolts.
2 . Remove the 4 screws.
9
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
!
!
M5AS - M5ASF Denison Vane Motors
Conversions
3 . 1 . DISASSEMBLY / ASSEMBLY
3 . 1 . a CHANGING CARTRIDGE :
3 . Remove the end cap.
If exchanging the end cap
only, check the seal and put
back the new rear cap, go to
page 19.
Be careful as some parts
could "stick" to the end cap
and come with it. Some
parts could then fall (cartridge or pressure plate).
4 . Put two screws into the
cam ring threaded holes.
Check if the seal is correctly
placed on the end cap.
If not, put it back correctly.
Use 2 screws
(10-24 UNC - Lg 3")
Ref.: 317-10320-0
10
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
Catalogue HY29-0037-M1/UK Overall Hydraulic Motors, Fixed
!
Conversions
M5AS - M5ASF Denison Vane Motors
3 . 1 . DISASSEMBLY / ASSEMBLY
3 . 1 . a CHANGING CARTRIDGE :
5 . Pull-up the two screws
to take out the cartridge
assembly.
If you want to change the
shaft / shaft seal, then go to
page 13.
If you want to reassemble
a new cartridge, then go to
page 16.
Carefully lift the cam ring
and rotor assembly making
sure that the rotor is coming
out with all the vanes staying
in their slots.
Also beware that the pressure plate could stick to the
cam ring an then fall down.
If you want to disassemble
the cartridge, go to the next
page.
11
Parker Hannifin SAS
VPDE, Denison Vane Motors
Vierzon - France
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