Bobcat Hydraulic

Will putting regular motor oil into a hydraulic reservior to raise the oil level up to normal hurt anything ?

We have a bobcat skid steer loader on the farm that was built in the mid 70's. Works pretty good for its age and we don't push it hard but it has it's share of leaks mostly at the seals. We were told by a mechanic that works on them that if you didn't have any hydraulic oil on hand you could put W30 motor oil in the reservior to bring it back up to proper level. Thats been a couple of years ago and now motor oil of any viscosity is being put into it. Will this damage any of the system; seals ,pump,valves etc.? The whole system will take about 13 gals. and I'm concerned that when I change the filter and top off with oil its just going to be a waste of oil and filter unless the whole system is flushed out.

Yup. The mechanic just wanted extra work. You will be back with a broken hydraulic system pump. You do that in emergency situations. It is not meant to stay in there. The whole system has to be flushed out and cleaned. that means parts taken apart and washed clean of oil. Brake fluid(hydraulic fluid is not oil). Oil will harden seals and neoprene causing them to leak even more. Also oil is corrosive to flexible hoses and they will crack. Oil will also burn.

BOBCAT Skid Steer Hydraulic Filter NOS OEM Genuine 970 980  p 6511197
BOBCAT Skid Steer Hydraulic Filter NOS OEM Genuine 970 980 p 6511197
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BOBCAT Skid Steer Hydraulic Oil Filter NOS OEM Genuine 843  p 6559458
BOBCAT Skid Steer Hydraulic Oil Filter NOS OEM Genuine 843 p 6559458
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BOBCAT Hydraulic Oil Filter NOS OEM Genuine 642 743 843  p 6598903
BOBCAT Hydraulic Oil Filter NOS OEM Genuine 642 743 843 p 6598903
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Bobcat Hydraulic Oil Filter 751 753 763 773 7753 863 864 873 883 963 Skid Steer
Bobcat Hydraulic Oil Filter 751 753 763 773 7753 863 864 873 883 963 Skid Steer
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Bobcat Female 3 8 Hydraulic Flat Face Drain Line Replacement Coupling 6679838
Bobcat Female 3 8 Hydraulic Flat Face Drain Line Replacement Coupling 6679838
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Bobcat Hydraulic Oil Filter S100 S130 S150 S160 S175 S185 S205 Skid Steer Loader
Bobcat Hydraulic Oil Filter S100 S130 S150 S160 S175 S185 S205 Skid Steer Loader
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Bobcat Hydraulic Oil Filter S100 S130 S150 S160 S175 S185 S205Skid Steer Loader
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Bobcat Hydraulic Oil Filter T110 T140 T180 T190 T200 864 Skid Steer Loader
Bobcat Hydraulic Oil Filter T110 T140 T180 T190 T200 864 Skid Steer Loader
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Hydraulic Gear Pump Bobcat M500 Skid Steer Loader 6511860
Hydraulic Gear Pump Bobcat M500 Skid Steer Loader 6511860
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Bobcat Hydraulic Oil Filter F Series 751 753 763 773 7753 843 853 863 873 963
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Hydraulic Gear Pump Bobcat 553 Skid Steer Loader 6673112
Hydraulic Gear Pump Bobcat 553 Skid Steer Loader 6673112
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Hydraulic Gear Pump Bobcat 553F Skid Steer Loader 6673112
Hydraulic Gear Pump Bobcat 553F Skid Steer Loader 6673112
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BOBCAT Skid Steer Hydraulic Filter NOS OEM Genuine 500 600  p 6599543
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Hydraulic Gear Pump Bobcat 600 Skid Steer Loader 6519278
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Hydraulic Gear Pump Bobcat 610 Skid Steer Loader 6519278
Hydraulic Gear Pump Bobcat 610 Skid Steer Loader 6519278
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Hydraulic Gear Pump Bobcat 751 Skid Steer Loader 6672513
Hydraulic Gear Pump Bobcat 751 Skid Steer Loader 6672513
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Hydraulic Gear Pump Bobcat 753 Skid Steer Loader 6672513
Hydraulic Gear Pump Bobcat 753 Skid Steer Loader 6672513
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Hydraulic Gear Pump Bobcat 763 Skid Steer Loader 6672513
Hydraulic Gear Pump Bobcat 763 Skid Steer Loader 6672513
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Hydraulic Gear Pump Bobcat 773 Skid Steer Loader 6672513
Hydraulic Gear Pump Bobcat 773 Skid Steer Loader 6672513
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BOBCAT CLARK Skid Steer Hydraulic Filter NOS OEM Genuine  p 6591038
BOBCAT CLARK Skid Steer Hydraulic Filter NOS OEM Genuine p 6591038
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High Flow Hydraulic Gear Pump Bobcat 753 Skid Steer Loader 6667382
High Flow Hydraulic Gear Pump Bobcat 753 Skid Steer Loader 6667382
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High Flow Hydraulic Gear Pump Bobcat 763 Skid Steer Loader 6667382
High Flow Hydraulic Gear Pump Bobcat 763 Skid Steer Loader 6667382
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Bobcat 763 Hydraulic Single Gear Pump High Flow
Bobcat 763 Hydraulic Single Gear Pump High Flow
$460.98
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Bobcat 753 Hydraulic Single Gear Pump High Flow
Bobcat 753 Hydraulic Single Gear Pump High Flow
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Bobcat 753 Hydraulic Gear Pump Single
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Hydraulic Single Gear Pump for Bobcat OEM 6675343
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Hydraulic Drive Motor For Bobcat OEM 6599718
Hydraulic Drive Motor For Bobcat OEM 6599718
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Hydraulic Drive Motor For Bobcat OEM 6664889
Hydraulic Drive Motor For Bobcat OEM 6664889
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Bobcat 631 Hydraulic Drive Motor
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Bobcat Early 773 Skid Steer Hydraulic Drive Motor
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BOBCAT Hydraulic hose 6 735 138 5 8 diameter 34 long 6735138
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BOBCAT HYDRAULIC FILTER lot of FOUR PER SALE part 6515541
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Bobcat Skid Steer Hydraulic Tube P N 7115412
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BOBCAT 863 HYDRAULIC DRIVE MOTOR
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Bobcat 620 Hydraulic Vane Pump
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FRONT END LOADER SCALE HYDRAULIC SCALE BUCKET BOBCAT FORKLIFT ON BOARD WEIGHING
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BOBCAT Skid Steer Hydraulic Filter Bronze NOS OEM Genuine  p 6563995
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New 3 4 inch set of skid steer hydraulic coupling fittings Bobcat Case Cat
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Bobcat 7149093 Long Strong Hydraulic Arm
Bobcat 7149093 Long Strong Hydraulic Arm
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Bobcat HB Series Hydraulic Breaker Operation maintenance Manual 2014 NEW E1 70
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Hydraulic Pump Bobcat 864 Single Speed Skid Steer Loader 6673911 6672829
Hydraulic Pump Bobcat 864 Single Speed Skid Steer Loader 6673911 6672829
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Hydraulic Pump Bobcat T200 Single Speed Skid Steer Loader 6673911 667282
Hydraulic Pump Bobcat T200 Single Speed Skid Steer Loader 6673911 667282
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Hydraulic Pump Bobcat 864G Single Speed Skid Steer Loader 6673911 667282
Hydraulic Pump Bobcat 864G Single Speed Skid Steer Loader 6673911 667282
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Hydraulic Pump Bobcat 873G Single Speed Skid Steer Loader 6673911 667282
Hydraulic Pump Bobcat 873G Single Speed Skid Steer Loader 6673911 667282
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Hydraulic Pump Bobcat 863 Single Speed Skid Steer Loader 6673911 6672829
Hydraulic Pump Bobcat 863 Single Speed Skid Steer Loader 6673911 6672829
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Hydraulic Pump Bobcat 873 Single Speed Skid Steer Loader 6673911 6672829
Hydraulic Pump Bobcat 873 Single Speed Skid Steer Loader 6673911 6672829
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Lift or Tilt Hydraulic Cylinder Kit Bobcat 310 313 or 371 Loader 7137771
Lift or Tilt Hydraulic Cylinder Kit Bobcat 310 313 or 371 Loader 7137771
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Tilt Hydraulic Cylinder Seal Kit Bobcat 444 Loader 7137771
Tilt Hydraulic Cylinder Seal Kit Bobcat 444 Loader 7137771
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Lift Hydraulic Cylinder Seal Kit Bobcat Farm Boy Loader 7137771
Lift Hydraulic Cylinder Seal Kit Bobcat Farm Boy Loader 7137771
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Lift Hydraulic Cylinder Seal Kit Bobcat 440 or 443 Loader 7137771
Lift Hydraulic Cylinder Seal Kit Bobcat 440 or 443 Loader 7137771
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Tilt Hydraulic Cylinder Seal Kit Bobcat 500 Loader 7137771
Tilt Hydraulic Cylinder Seal Kit Bobcat 500 Loader 7137771
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Tilt Hydraulic Cylinder Seal Kit Bobcat 500E or 600E Loader 7137771
Tilt Hydraulic Cylinder Seal Kit Bobcat 500E or 600E Loader 7137771
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Bobcat 873 Filter Housing Hydraulic Mount Skid Steer 863
Bobcat 873 Filter Housing Hydraulic Mount Skid Steer 863
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Bobcat 620 Skid Steer Loader Tilt Hydraulic Cylinder Seal Kit 7137771
Bobcat 620 Skid Steer Loader Tilt Hydraulic Cylinder Seal Kit 7137771
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Bobcat 721 Skid Steer Loader Tilt Hydraulic Cylinder Seal Kit 7137771
Bobcat 721 Skid Steer Loader Tilt Hydraulic Cylinder Seal Kit 7137771
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Tilt Hydraulic Cylinder Seal Kit Bobcat 632 Skid Steer Loader 7135547
Tilt Hydraulic Cylinder Seal Kit Bobcat 632 Skid Steer Loader 7135547
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Lift Hydraulic Cylinder Seal Kit Bobcat 444 Skid Steer Loader 6505849
Lift Hydraulic Cylinder Seal Kit Bobcat 444 Skid Steer Loader 6505849
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Lift Hydraulic Cyl Seal Kit Bobcat 500E or 600E Skid Steer Loader 6505849
Lift Hydraulic Cyl Seal Kit Bobcat 500E or 600E Skid Steer Loader 6505849
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Hydraulic Filter Bobcat 59764498 6515541 6516722 6660728 743 SKID STEER
Hydraulic Filter Bobcat 59764498 6515541 6516722 6660728 743 SKID STEER
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Bobcat Flat face Quick Coupler Hydraulic S220 S250 S300 S330 A250 A300 6679837
Bobcat Flat face Quick Coupler Hydraulic S220 S250 S300 S330 A250 A300 6679837
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Lift Hydraulic Cylinder Seal Kit Bobcat 642 or 643 Skid Steer Loader 6504959
Lift Hydraulic Cylinder Seal Kit Bobcat 642 or 643 Skid Steer Loader 6504959
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Lift Hydraulic Cyl Seal Kit Bobcat 730 731 or 732 Skid Steer Loader 6504959
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Lift Hydraulic Cyl Seal Kit Bobcat 741 742 or 743 Skid Steer Loader 6504959
Lift Hydraulic Cyl Seal Kit Bobcat 741 742 or 743 Skid Steer Loader 6504959
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Bobcat hydraulic hose 7 102 336 for S300
Bobcat hydraulic hose 7 102 336 for S300
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Tilt Hydraulic Cylinder Seal Kit Bobcat 444 Skid Steer Loader 6505850
Tilt Hydraulic Cylinder Seal Kit Bobcat 444 Skid Steer Loader 6505850
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Tilt Hydraulic Cylinder Seal Kit Bobcat 500E or 600E Skid Steer Loader 6505850
Tilt Hydraulic Cylinder Seal Kit Bobcat 500E or 600E Skid Steer Loader 6505850
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Scarifier Hydraulic Cylinder Seal Kit Bobcat 600 or 700 Attachments 6505850
Scarifier Hydraulic Cylinder Seal Kit Bobcat 600 or 700 Attachments 6505850
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Old Style Hydraulic Cylinder Seal Kit Bobcat 444 or 500 Scarifier 6505850
Old Style Hydraulic Cylinder Seal Kit Bobcat 444 or 500 Scarifier 6505850
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Hydraulic Gear Pump Bobcat 371 Skid Steer Loader 6508434
Hydraulic Gear Pump Bobcat 371 Skid Steer Loader 6508434
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Hydraulic Gear Pump Bobcat 313 Skid Steer Loader 6508434
Hydraulic Gear Pump Bobcat 313 Skid Steer Loader 6508434
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Hydraulic Gear Pump Bobcat 310 Skid Steer Loader 6508434
Hydraulic Gear Pump Bobcat 310 Skid Steer Loader 6508434
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Hydraulic Gear Pump Bobcat 553F Skid Steer Loader 6598854
Hydraulic Gear Pump Bobcat 553F Skid Steer Loader 6598854
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Hydraulic Gear Pump Bobcat 553 Skid Steer Loader 6598854
Hydraulic Gear Pump Bobcat 553 Skid Steer Loader 6598854
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Hydraulic Gear Pump Bobcat 543B Skid Steer Loader 6598854
Hydraulic Gear Pump Bobcat 543B Skid Steer Loader 6598854
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Hydraulic Gear Pump Bobcat 543 Skid Steer Loader 6598854
Hydraulic Gear Pump Bobcat 543 Skid Steer Loader 6598854
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Hydraulic Gear Pump Bobcat 542B Skid Steer Loader 6598854
Hydraulic Gear Pump Bobcat 542B Skid Steer Loader 6598854
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admin posted at 2009-12-23 Category: Heavy Equipment