Parker F12 series User manual

Effective: June, 2006
Supersedes: August, 2003
Bulletin HY30-5504-M1/UK
Service Manual
Series F12

2Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
List of contents Page
General information ...................................................................................3
Specifications ............................................................................................4
Disassembling ....................................................................................5 - 10
Assembling .......................................................................................11 - 16
Change of shaft seal ...............................................................................17
Valve plates .............................................................................................18
Conversion factors
1 kg = 2.2046 lb
1 N = 0.22481 lbf
1 bar = 14.504 psi
1 l = 0.21997 UK gallon
1 l = 0.26417 US gallon
1 cm3 = 0.061024 in3
1 m = 3.2808 feet
1 mm = 0.03937 in
9/5 °C + 32 = °F
Offer of Sale
Please contact your Parker representation for a detailed ”Offer of Sale”.
FAILURE OR IMPROPER SELECTION OR IMPROPER USE OF THE PRODUCTS AND/OR SYSTEMS DESCRIBED
HEREIN OR RELATED ITEMS CAN CAUSE DEATH, PERSONAL INJURY AND PROPERTY DAMAGE.
This document and other information from Parker Hannifin Corporation, its subsidiaries and authorized distributors provide
product and/or system options for further investigation by users having technical expertise. It is important that you analyze all
aspects of your application, including consequences of any failure, and review the information concerning the product or sys-
tem in the current product catalogue. Due to the variety of operating conditions and applications for these products or systems,
the user, through its own analysis and testing, is solely responsible for making the final selection of the products and systems
and assuring that all performance, safety and warning requirements of the application are met.
The products described herein, including without limitation, product features, specifications, designs, availability and pricing, are
subject to change by Parker Hannifin Corporation and its subsidiaries at any time without notice.
WARNING
!

3 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
General information
F12 is bent axis, fixed displacement heavy-
duty motor/pump seris. They can be used
in numerous applications in both open and
closed loop circuits.
Series F12 conforms to current ISO and
SAE mounting flange and shaft end configu-
rations. A very compact cartridge version is
also available.
Frame sizes: F12-30, -40, -60, -80, -90,
-110 and -125.
Thanks to the unique spherical piston de-
sign, F12 motors can be used at unusually
high shaft speeds. Operating pressures to
480 bar provides for the high output power
capability.
The 40° angle between shaft and cylinder
barrel allows for a very compact, lightweight
motor/pump.
The laminated piston ring offers important
advantages such as low internal leakage
and thermal shock resistance.
The pump version has highly engineered
valve plates for increased selfpriming speed
and low noise, available with left and right
hand rotation.
The F12 motors produce very high torque
at start-up as well as at low speeds.
Our unique timing gear design synchronizes
shaft and cylinder barrel, making the F12
very tolerant to high ’G’ forces and torsional
vibrations.
Heavy duty roller bearings permit substan-
tial external axial and radial shaft loads.
The F12’s have a simple and straightfor-
ward design with very few moving parts,
making them very reliable motors/pumps.
The unique piston locking, timing gear and
bearing set-up as well as the limited num-
ber of parts add up to a very robust design
with long service life and, above all, proven
reliability.
F12 cross section
1. Barrel housing
2. Valve plate
3. Cylinder barrel
4. Piston with piston ring
5. Timing gear
6. Tapered roller bearing
7. Bearing housing
8. Shaft seal
9. Output/input shaft
1 2 345 6 789

4Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Operating temerature
The following temperatures should not be exceeded
(type H and N shaft seals):
Drain fluid: 90 oC.
FPM shaft seals (type E, type V) can be used to
115 oC drain fluid temperature.
NOTE: The temperature should be measured at
the utilized drain port.
Continuous operation may require case flushing in
order to meet the viscosity and temperature limitations.
For further information we refer to:
Catalgue HY17-8249/UK
Frame size F12-030 F12-040 F12-060 F12-080 F12-090 F12-110 F12-125
Displacement (cm3/rev) 30.0 40.0 59.8 80.4 93.0 110.1 125.0
Operating Pressure
max intermittent1) (bar) 480 480 480 480 420 480 480
max continuous (bar) 420 420 420 420 350 420 420
Motor operating speed
max intermittent1) (rpm) 7 300 6 700 5 800 5 300 5 000 4 800 4 600
max continuous (rpm) 6 700 6 100 5 300 4 800 4 600 4 400 4 200
min continuous (rpm) 50 50 50 50 50 50 50
Max pump sefpriming speed2)
L or R function; max (rpm) 3150 2870 2 500 2 300 2 250 2 290 2 100
Motor input flow
max intermittent1) (l/min) 213 256 335 418 467 517 567
max continuous (l/min) 168 200 257 322 359 396 426
Main circuit temp.3)
max (oC) 80 80 80 80 80 80 80
min (oC) -40 -40 -40 -40 -40 -40 -40
Mass moment of inertia
(x10-3) (kg m2) 1.7 2.9 5.0 8.4 8.4 11.2 11.2
Weight
(kg) 12.0 16.5 21.0 26.0 26.0 36.0 36.0
1) Intemittent: max 6 seconds in any one minute.
2) Selfpriming speed valid at sea level.
3) See also below, operating temperature.

5 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Disassemble
Fasten the unit in a vice. Loosen the 4
boults (item 491).
491
Lift off the barrel housing (item 110). Make
sure that the valve plate doesn’t fall out
when lifting the barrel housing off.
Lift off the cylinder barrel (item 411). Take
the shim (item 488) away.
110
411
488

6Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Lift off the barrel support (item 430).
Remove the pistons (item 440).
Remove the O-ring (item 221).
430
440
221

7 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
237
Remove the retaining ring (item 237).
231
Remove the seal carrier (item 231).
225
Remove the O-ring (item 225).

8Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
478 Remove the retaining ring (item 478).
476
Lift off the spacer washer (item 476).
311
211
Push out the shaft (item 311) with a press.
Place the bearing housing (item 211) on a
tube.

9 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Remove the small tappered roller bearing
(item 470).
Tap the small bearing ring off with a mandrel.
Tap the large bearing ring off with a mandrel.
470

10 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Place the ring gear (item 452) on a tube.
Push out the shaft (item 311) with a press.
452
311
Tube

11 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Push on the bearing ring (item 460) in the
bearing housing (item 211) with a press.
Use a tube to match the outer diameter off
the bearing ring.
211
Push on the bearing ring (item 470) in the
bearing housing (item 211) with a press.
Use a tube to match the outer diameter off
the bearing ring.
211
Push on the tappered roller bearing (item 460)
and the ring gear (item 452) on the shaft with a
press. Use a tube (see page 16).
460
452
Assemble

12 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Push on the Bearing (item 470) with a press
until correct preload is achieved. Install the
spacer washer (item 476).
476
Install the retaining ring (item 478).
478
Install the O-ring (item 225).
225

13 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Install the seal carrier (item 231).
231
Install the retaining ring (item 237).
237
Install the O-ring (item 221).
221

14 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Install the pistons (item 440).
Install the barrel support (item 430).
430
440
Install the shim (item 488).
488

15 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
411
Install the cylinder barrel (item 411). Ensure
correct timing. (Marking, punch mark)
Put some grease on the valve plate (item
121) and install it into the barrel housing
(item 110).
Make sure you have installed the valve
plate correct (see page 18).
121
110
Install the barrel housing (item 110).
110
.
..

16 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Fasten the 4 boults (item 491) to specified
torque.
F12-030 60 ± 10 Nm
F12-040 60 ± 10 Nm
F12-060 60 ± 10 Nm
F12-080 105 ± 20 Nm
F12-090 105 ± 20 Nm
F12-110 105 ± 20 Nm
F12-125 105 ± 20 Nm
491
Type ØA ØB ØC
F12-030 60 49 42
F12-040 65 58 52
F12-060 73 64 57
F12-080 74 70 62
F12-110 82 75 67
Tools to be used to facilitate the
installation of the tappered roller
bearings.
ØB
ØA -1
0
0.5×45° ØC 0
+0.2
1.5
3
30°
30°

17 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Type ØA ØB ØC
Remove the retaining ring (item 237).
Remove the seal carrier (item 231).
Tap the shaft seal out with hammer and
mandrel.
Tap the new shaft seal back with a tube and
a hammer.
The outside diameter on the tube is 65mm.
237
231
Change of shaft seal

18 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
Valve plates F12
Following valve plates can be fitted in F12.
R
G
X
R = R.H. rotation, pump operation
G = L.H. rotation, internal drain, motor
operation
X = Bi-directional, pump operation, high self
priming speed
Against cylinder barrel
Against cylinder barrel
M
L
M = Bi-directional, motor operation
L = L.H. rotation, pump operation
Against cylinder barrel

19 Parker Hannifin
Pump and Motor Division
Trollhättan, Sweden
Service Manual
Series F12
HY30-5504-M1/UK
The general condition of the unit can be established by checking the drain flow. Remove the
drain line and keep the drain port above a suitable container. Run the unit at normal speed and
pressurize the system to 2000-3000 psi. (150 - 200 bar)
Measure the drain flow for one minute; if it exceeds the maximum figures shown below, the unit
is worn or damaged internally and should be replaced or repaired. Also, check for leakage at
the shaft seal and between the bearing and barrel housings.
Series Normal
cu.in./min
Normal
l/min
Max
gpm.
Max
l/min
F12-030 24 0.4 .55 2.0
F12-040 30 0.5 .65 2.5
F12-060 43 0.7 .70 2.7
F12-080 61 1.0 .80 3.0
F12-090 61 1.0 .80 3.0
F12-110 61 1.0 .80 3.0
F12-125 61 1.0 .80 3.0

Parker Hannifin
Pump and Motor Division
Flygmotorvägen 2
SE-461 82 Trollhättan
Sweden
Tel: [phone]
Fax: [phone]
www.parker.com