(19)
(11) EP 0 352 654 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
28.03.1990 Bulletin 1990/13

(43) Date of publication A2:
31.01.1990 Bulletin 1990/05

(21) Application number: 89113432.2

(22) Date of filing: 21.07.1989
(51) International Patent Classification (IPC)5: E02F 9/22, E02F 9/20, F15B 21/08
(84) Designated Contracting States:
BE DE FR GB IT

(30) Priority: 27.07.1988 US 224643

(71) Applicant: Clark Equipment Company
South Bend Indiana 46634 (US)

(72) Inventors:
  • Mather, Joseph M.
    Lisbon North Dakota 58054 (US)
  • Jacobson, Scott B.
    Kindred North Dakota 58051 (US)
  • Haeder, Thomas Q.
    Lisbon North Dakota 58054 (US)

(74) Representative: VOSSIUS & PARTNER 
Postfach 86 07 67
81634 München
81634 München (DE)


(56) References cited: : 
   
       


    (54) Electrically controlled auxiliary hydraulic system for a skid steer loader


    (57) An electrically controlled auxiliary hydraulic system (60) for both front and rear mounted attachments on a skid steer loader. An electrically actuated auxiliary control valve (92) is coupled to the front and rear mounted attachments through an electrically actuated diverter valve (74). An operator can select between control of either the front or rear attachments by actuating a diverter switch located on a steering lever. The auxiliary control valve (92) is then used to control the selected attachment by actuating forward, reverse and forward latch switches on the control handles. The selected attachment can also be operated in a high pressure mode by actuating a high pressure switch when extra horsepower needs to be delivered to the attachment.







    Search report