RH4 - CRAWLER EXCAVATORS - FROM SN 4226 TO SN 4255 (3/98-12/00) No Description Parts on group : Pos. Part No Qty Parts name Comments 68. 2977519 [2] PRESSURE SWITCH 990. 1283440 [AR] SPEED 991. 1285465 [AR] HYDRAULIC SYSTEM Parts catalog : 23.272[2496570002] - SERVO VALVE part catalog new.New Holland 23.271[2782654002] - SERVO VALVE MOUNTING PARTS RIGHT-HAND part catalog new.New Holland 23.271[2496568002] - SERVO VALVE MOUNTING PARTS LEFT-HAND part catalog new.New Holland 23.270[2496571002] - SERVO VALVE INSTALL.MATERIAL RIGHT-HAND part catalog new.New Holland 23.270[2496569002] - SERVO VALVE INSTALL.MATERIAL LEFT-HAND part catalog new.New Holland 23.242[2783875000] - VALVE INTERCONN. part catalog new.New Holland 23.241[2783333001] - VALVE INTERCONN. MOUNTING PARTS part catalog new.New Holland 23.240[2783334000] - VALVE INTERCONN. INSTALL.MATERIAL part catalog new.New Holland 23.290[2496573000] - TREADLE VALVE INSTALL.MATERIAL part catalog new.New Holland 23.290[2496583000] - TREADLE VALVE INSTALL.MATERIAL part catalog new.New Holland 23.291[2444789000] - TREADLE VALVE MOUNTING PARTS part catalog new.New Holland 23.292[2496572001] - TREADLE VALVE part catalog new.New Holland 23.292[2782655001] - TREADLE VALVE part catalog new.New Holland 23.292[2902990002] - TREADLE VALVE part catalog new.New Holland 23.302[2284872000] - TRAVEL RTRDR.VLV. part catalog new.New Holland 23.312[2216823000] - PROPORTIONAL VALVE part catalog new.New Holland
![23.290[2444824000] - TREADLE VALVE INSTALL.MATERIAL New Holland Parts scheme diagram](http://c1.a2109.com/nhp/47/4796/479641.png "23.290[2444824000] - TREADLE VALVE INSTALL.MATERIAL New Holland catalog part")
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![new.New Holland 23.271[2782654002] - SERVO VALVE MOUNTING PARTS RIGHT-HAND part catalog](http://c1.a2109.com/_350/nhp/76/7688/768890.png "new.New Holland 23.271[2782654002] - SERVO VALVE MOUNTING PARTS RIGHT-HAND :")
![new.New Holland 23.271[2496568002] - SERVO VALVE MOUNTING PARTS LEFT-HAND part catalog](http://c1.a2109.com/_350/nhp/13/1393/13936.png "new.New Holland 23.271[2496568002] - SERVO VALVE MOUNTING PARTS LEFT-HAND :")
![new.New Holland 23.270[2496571002] - SERVO VALVE INSTALL.MATERIAL RIGHT-HAND part catalog](http://c1.a2109.com/_350/nhp/86/8604/8604.png "new.New Holland 23.270[2496571002] - SERVO VALVE INSTALL.MATERIAL RIGHT-HAND :")
![new.New Holland 23.270[2496569002] - SERVO VALVE INSTALL.MATERIAL LEFT-HAND part catalog](http://c1.a2109.com/_350/nhp/11/1159/1159980.png "new.New Holland 23.270[2496569002] - SERVO VALVE INSTALL.MATERIAL LEFT-HAND :")
![new.New Holland 23.242[2783875000] - VALVE INTERCONN. part catalog](http://c1.a2109.com/_350/nhp/79/7956/795677.png "new.New Holland 23.242[2783875000] - VALVE INTERCONN. :")
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![new.New Holland 23.302[2284872000] - TRAVEL RTRDR.VLV. part catalog](http://c1.a2109.com/_350/nhp/10/1003/1003895.png "new.New Holland 23.302[2284872000] - TRAVEL RTRDR.VLV. :")
![new.New Holland 23.312[2216823000] - PROPORTIONAL VALVE part catalog](http://c1.a2109.com/_350/nhp/29/2922/292271.png "new.New Holland 23.312[2216823000] - PROPORTIONAL VALVE :")