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4

THE OILGEAR COMPANY

Bulletin 947023

Hydraulic components can be heavy. Use
caution while lifting these components.
Serious personal injury can be avoided
with proper handling of the components.

Please contact Oilgear if you require
assistance, when performing hydraulic
test procedures, use the proper hydraulic
gauges. Installing an incorrect test gauge
could result in serious injury if the gauge
fails. Use properly rated hydraulic hoses
to allow the test gauge to be read away
from moving parts and functions.

Increasing hydraulic pressure beyond the
recommendations may result in serious
damage to the pump and system or
serious personal injury and may void the
Oilgear Warranty. If you have questions
concerning hydraulic pressures or testing
procedures, please contact Oilgear before
attempting the test procedures or making
adjustments.

An Oilgear pump must not be modified in
any way without authorization from
Oilgear. Modifications may not comply
with safety standards, including ANSI
safety standards, and may result in
serious personal injury. Please contact
Oilgear if you require assistance.

DO NOT enter under hydraulic supported
equipment unless they are fully supported
or blocked. Failure to follow this procedure
can result in serious injury or death.

Any Oilgear pump safety decals must be
replaced anytime they are damaged,
missing, or cannot be read clearly. Failure
to have proper decals in place can result
in serious injury or death. (If you require
safety decals, please contact Oilgear for
replacement safety decals, at no charge.)

Be sure everyone is clear of the area
around the hydraulic system before
operating after servicing. Remain attentive
at all times when operating to check your
work until you are completely sure it is
safe to return to service. Failure to heed
this warning may result in serious
personal injury or death.

Wear the proper protective clothing when
operating, servicing or maintaining the
hydraulic system or the Oilgear pump. Wear
the correct protective gear, safety glasses,
gloves, and safety shoes. Serious injury
can result without proper protective gear.

Make sure to keep hands and feet and
other parts of your body clear of revolving
or moving parts. Failure to comply can
cause serious injury.

DO NOT wear watches, rings, or jewelry
while working with electrical and
mechanical equipment. These items can
be hazardous and can cause serious and
painful injuries if they come into contact
with electrical wires, moving parts, or
hydraulic equipment.

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Safety First

Summary of Contents for F1U Series

Page 1: ...ulletin 90011 Installation of Vertically Mounted Axial Piston Units Bulletin 90014 PVG Open Loop Pumps Sales Bulletin 47019 I Pump Control Instructions Series F1U P 1NN Single Pressure Compensator Bul...

Page 2: ...ase contact us if you have any questions regarding the information in this instruction bulletin The cleanliness of working on this pump or the hydraulic system is extremely important to the safety and...

Page 3: ...ease contact Oilgear for assistance when required Hydraulic cylinders can be holding a function in a certain position when the pump is OFF An example of this is a function being held in the lift or pa...

Page 4: ...ked Failure to follow this procedure can result in serious injury or death Any Oilgear pump safety decals must be replaced anytime they are damaged missing or cannot be read clearly Failure to have pr...

Page 5: ...stricted full sized and connected directly to the reservoir below the lowest fluid level Make provisions for opening this line without draining siphoning reservoir Running the pump in NEUTRAL position...

Page 6: ...hydraulic fluid 3 Turn drive shaft a few times by hand with a spanner wrench to make sure parts rotate Torque to turn drive shaft should be 9 to 24 ft lb 12 to 32 N m With pump under no load or with...

Page 7: ...shaped upper port A and lower port B in the valve plate While connected to the upper side suction port A each piston moves outward OUT drawing fluid from port A into the piston bore until its outermos...

Page 8: ...n results when the control centers the swashblock The swashblock angle G is now zero and swashblock face is parallel to the cylinder face There is no inward or outward motion of the pump pistons as pi...

Page 9: ...ights Without Controls Refer to installation drawings for more detailed dimensions and port configurations NOTE Unit THEORETICAL MAXIMUM DISPLACEMENT RATED CONTINUOUS PRESSURE MAXIMUM PRESSURE FLOW RA...

Page 10: ...iston pump Inspect components Replace Worn or grooved cylinder barrel 101 and or valve plate 401 mating surfaces Worn piston shoe assemblies 102 or piston bores in cylinder Faulty output circuit compo...

Page 11: ...ize container and calculate the flow rate Additional leakage indicates wear but does not become critical until it impairs performance DISASSEMBLY The cleanliness of working on this pump or the hydraul...

Page 12: ...apart all assemblies CONTROL GROUP Refer to the reference material for the information which applies to the control your pump is equipped with Some force is required to remove the control housing 1 R...

Page 13: ...g DRIVE SHAFT GROUP 1 Remove the drive key 303 if used and the drive shaft bearing retainer ring 305 2 Grasp outboard end of drive shaft 301 and pull it out of the pump housing 3 Remove the shaft seal...

Page 14: ...hen installing new piston shoe assemblies or the rotating group make sure the pistons move freely in their respective bores Figure 7 Piston and Shoe Inspection 5V 12015 L A All shoes must be equal wit...

Page 15: ...end Insert swashblock 201 into the pump housing Once in place be sure the swashblock swivels in the saddle bearings With new bearings swiveling may be stiff and not always smooth 5 Bearing 202 should...

Page 16: ...of the shaft slightly helps the cylinder 101 and the cylinder bearing 202 engagement Continue pushing the cylinder forward until the piston shoes contact the swashblock the back of the cylinder shoul...

Page 17: ...m 408 1 8 int 45 in lb 5 N m 409 1 8 int 45 in lb 5 N m 410 3 16 int 120 in lb 14 N m 503 Depends on adapter 3 8 SHC 5 16 int 45 ft lb 61 N m 3 8 HHC 9 16 int 15 ft lb 20 N m 1 2 HHC 3 4 ext 37 ft lb...

Page 18: ...ced PARTS LIST drawings on pages 24 through 27 Parts are common between pumps Only the differences are shown NOTE Item Qty Description HOUSING ASSEMBLY GROUP 001 1 Housing Pump 003 1 Nameplate Identif...

Page 19: ...03 1 Key Drive Shaft keyed shafts only 304 1 Ring Retainer External 305 1 Ring Retainer Internal 306 1 Bearing Front 307 1 Bushing used on thru shaft w cover plate 308 1 Screw used on thru shaft w cov...

Page 20: ...06 EPR Seals 1 Dia Keyed Code Y Std L517104 313 All 301A 302 303 304 305 306 13T 16 32 Spline Code K Std L517104 315 All 301B 302 304 305 306 15T 16 32 Spline Code S Std L517104 317 All 301C 302 304 3...

Page 21: ...trile Seals L517104 418 All EPR Seals L517104 410 All PVG 048 065 Side Port Thru Shaft RH 401F 403 4 404 405 2 406 407 408 2 409 410 411 Viton Seals L517104 404 All Nitrile Seals L517104 419 All EPR S...

Page 22: ...13 All Seal Kits for Options Standard Cover Plate 505 Viton Seals 238270 138 All Nitrile Seals 233370 138 All EPR Seals 242080 138 All SAE B Adapter 505 506 Viton Seals L250667 017 All Nitrile Seals L...

Page 23: ...06 All 501 502 503 2 504 2 505 506 507 4 Nitrile Seals L319076 111 All EPR Seals L319076 112 All SAE A A Adapter Coupling Kit Viton Seals L319076 104 All 501 502 503 2 504 2 505 507 4 508 Nitrile Seal...

Page 24: ...and Exploded Parts Drawing for PVG 048 065 and 075 517105 200 sheet 1 of 7 306 301 304 305 302 005 404 403 401 008 003 007 009 005 201 208 102 001 411 009 204B 202 104 103 105 101 204A 406 407 408 409...

Page 25: ...301A 303 403 403 409 410 405 401C 405 406 407 401A 411 201 204A 204B 005 008 003 004 009 001 005 202 208 102 104 103 105 101 304 305 306 302 007 205 407 408 407 505 405 502 503 401E 403 309 308 307 30...

Page 26: ...sheet 6 of 7 SAE B TO SAE A A SHOWN SEE SHEET 2 FOR EXPLOSION OR SAE B TO SAE B SHOWN SAE B TO SAE B B COVER PLATE ASSEMBLY SAE B TO SAE A OILG0455 401E 401F 401E 401F 502 503 502 507 503 504 506 501...

Page 27: ...and 7 of 7 OILG0456 SAE B TO SAE A A SHOWN SAE B TO SAE B SHOWN SAE B TO SAE B B THRU SHAFT OPTIONS SAE B TO SAE A OR 301D 301E 301F 301G 301H 401E 401F 505 502 501 507 508 506 504 503 301D 301E 401E...

Page 28: ...me down time difficulties SERVICE SCHOOLS Oilgear conducts training to train your maintenance personnel General hydraulic or electronic training is conducted at our Milwaukee Wisconsin plant on a regu...

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