Hi all,
Not been on for a while due to work but have recently been using my hymac 370 to dig out and scrape a few tons of mud and rubble next to one of my sheds. The machine has always been slow and hydraulic pump has screeched a bit but as I was using it the other day the loader started to get very hard to lift, had to give maximum revs to get it to move at all. The pump is whining like hell as well. Steering was non existant unless I on idle and couldnt use the loader and turn the wheel at the same time. Today I pulled off the hydraulic filter that is under the cab, found it to have collapsed so replaced it and topped up oil. Started up and now getting no power to backactor side rams or the stabilisers. Loader wont move unless full revs and then will only move a few inches/stop/few inches/stop.
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Now, I cant get the front hydraulic filter housing off, its solid. Need to get some heavier duty bars to put over the end of my shifter. Will hopefully get that off and changed on friday, I am also going to empty the hydraulic tank and give it a good clean. Question is, does it sounds likely the pump is on the way out? Any idea of a rough cost of refurb/replacement if so? I need it in the next couple of weeks to put drains in and dig out some new trackway so need it fixed ASAP if it is the pump , any ideas would be welcome. (All levers are in nuetral position, pump is slightly noisy when at idle)
Hymac 580 Manual
Cheers,
Hymac Maneuver
IainHymac 370c Manual
We Stock Quality Hymac Parts Model 580C
Hymac 580c Parts Manual
| AIR FILTER | GEARBOX BEARING | SLEW MOTOR KIT |
| ALL BUSHINGS | GEARBOX COLLAR | SPACERS |
| ALL ENGINE SPARES | GEARBOX SEAL | SPROCKET BEARING |
| ALL FILTERS | GEARBOX TRANSFER PINION | SPROCKET SHAFT |
| ALL SEALS & BEARINGS | HOIST RAM KIT | SPROCKET SHAFT SEAL |
| ALL VALVES & KITS | HOSES | THROTTLE CABLE |
| BRAKE CYLINDER KIT | HYDRAULIC FILTER | TRACK BOLT |
| BRAKE DRUM SHAFT | IDLER BUSHING | TRACK MOTOR KIT |
| BRAKE SHOE | IDLER WHEEL SEAL | TRACK RAM SEAL |
| BRAKE SPRING | O RING KITS | TRANSFER GEAR |
| BUCKET BUSHING | OIL COOLER | TRIPLE GEAR SET |
| BUCKETRAM BALL BUSHING | OUTPUT SHAFT | TRIPLE PUMP |
| CHECK VALVE | OUTPUT SHAFT BEARING | TRIPLE PUMP BEARING |
| CIRCLIPS | OUTPUT SHAFT GEAR | TRIPLE PUMP DRIVE |
| DIPPER ARM KIT | ROLLER SEAL | TRIPLE PUMP FLEX BEARING |
| DRIVE CHAIN | ROTORARY DISTRIBUTOR | TRIPLE PUMP MINOR KIT |
| FLEX BEARING BOLT | SLEW MOTOR BEARING | TRIPLE PUMP WEAR PLATE |