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Dan, Technician
Category: Construction and Road Equipment
Satisfied Customers: 4291
Experience:  17+ yrs. shop and field experience with all major brands of heavy equipment and trucks - 1995 WyoTech graduate.
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I have a jd 690elc ...after a few minutes of operation I loose

Customer Question

I have a jd 690elc ...after a few minutes of operation I loose all hydraulic functions...I did the system controller check as written on the controller and came up with...heavy lift relay flashing manuals do not show where this relay is located... could you help...tx
JA: We'll do all we can to help. Is there anything else important you think the Construction Equipment Mechanic should know?
Customer: i believe the serial # ***** ***** ...also f it is cold outside ,it seems to run longer but soon fails...also only works in two of the modes lo and
JA: OK. Got it. I'm sending you to a secure page on JustAnswer so you can place the $5 fully-refundable deposit now. While you're filling out that form, I'll tell the Construction Equipment Mechanic about your situation and then connect you two.
Submitted: 6 months ago.
Category: Construction and Road Equipment
Expert:  Dan replied 6 months ago.
hi my name is***** will be glad to try to help. First check the in tank return hydraulic filter for signs of fine metal/debris indicating a pump or component failure occurring. It will look like metallic glitter in the oil.
Expert:  Dan replied 6 months ago.
Relays. Click below for the diagramRELAYSCartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS1AT77726Relay1-535788ALTERNATORAT75769Relay1535789-559602ALTERNATORAT77726Relay1559603-ALTERNATORAT77726Relay5TRAVEL ALARM, PROPEL DISPLACEM ENT, HEAVY LIFT AND SWING BRAKE219M7775Screw6M6 X 1619M7775Screw3-549955M6 X 16 USE WITH (2) AT147410 RELAYS19M7775Screw4549956-M6 X 16 USE WITH AT145 341 AND AT85258 RELAYS314H650Nut4-5499555/16"414M7165Lock Nut9M65AT147410Relay2-549955START CIRCUIT AND BATTERY DISCONNECTCartkeyPART NO.PART NAMEQTYSERIAL NO.REMARKS612H246Lock Washer4-5499550.190"714H631Nut4-5499550.190"812H303Lock Washer4-5499555/16"9AT85258Relay1549956-BATTERY DISCONNECT (24 VOLT) USE W ITH AT171867 VEHICLE WIRING HARNESSAT145341Relay1549956-START CIRCUIT (24 VOLT) USE WITH AT171867 VEHICLE WIRING HARNESS1021M7199Screw2549956-M5 X 10

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