The Classic Machinery Network

Hi Everyone , can anyone tell me how the spool valve works, there appears to be two solenoids operated by the switch on dashboard for forward and reverse. At the moment I can only move the machine forward . I have power at solenoid when F or R selected, solenoid coil value similar. Photo attached of...

hi Cobba, I removed all wires from switch once again and rain a cable from battery to starter solenoid, and the engine turned over. Reconnected wires back on switch and turned switch and the engine started. Crazy!! However, another fault appeared the machine will only moved forward. I have checked f...

Hi Cobba, Thank you for your reply. I had removed switch and checked wiring etc, no power at small terminal on solenoid. the switch was new last year, ( 4 terminal) so assuming its not at fault. There are several relays under dash which are operating when ignition switch operated. hence why I was as...

HI everyone,

Can anyone help me with a wiring diagram for my 4 tonne thwaites dumper. It would not start today and appears to have lost feed to starter solenoid. Any help would be appreciated

thank you Stay Safe

i changed the oil, they are a little better but still overheating, can i flush them out with diesel oil, thinking it should remove the dirt and cheaper than hydraulic oil,

thank you

thank you guys for your replies, essexpete is correct they oil immersed discs so I am going to change the oil and hope that solves the problem, the footbrake has a slave cylinder in front of it and the pipes go down to the axle.the handbrake is cable.

good day everyone i am new here and require some help if possible thank you. having just restored an 801.4 jcb 1995, i have now purchased a thwaites dumper truck 4 tonne swivel bucket 4wd. great machine only that the brakes seem seized on and get hot!! i believe they are immersed in hydraulic fluid ...