mrminds
Member
hie all
i have an older model backhoe loader
cat 424 D with RXA serial
my transmission has a 10 second delay before shifting to forward position and a 5 second delay shifting to reverse and this happens with all the gears
also the machine does not accelerate beyond 15 km/h when on the road also struggles going uphill
the shifting delay started 20 hours after replacing transmission filter and transmission oil.. ( strainer also cleaned) both the filter and oil have been replaced twice thinking the 1st once where faulty..
the F N R selector has also been replaced
issue no2
having endless issues with hydraulic pump.. repaired twice but pump will only work for few days then looses pressure.. when stripping the pump, valve plate and pistons always gone..
each time pump comes back from repairs new oil & filter used but issue continues.. i was told i could be having a bypass on the valve banks or my oil cooler is not cooling the oil or i have a dirty hydraulic system or the hydraulic pump pressure compensator is not set correctly machine or either faulty
the front bucket lift and tilts ok when pump is operational but the backhoe functions tend to be slow especially the bucket when its halfway closing it becomes fast then opens fast till halfway and becomes slow, the swing and lift functions work fine, the hydraulic cylinders have had new seals installed
i have an older model backhoe loader
cat 424 D with RXA serial
my transmission has a 10 second delay before shifting to forward position and a 5 second delay shifting to reverse and this happens with all the gears
also the machine does not accelerate beyond 15 km/h when on the road also struggles going uphill
the shifting delay started 20 hours after replacing transmission filter and transmission oil.. ( strainer also cleaned) both the filter and oil have been replaced twice thinking the 1st once where faulty..
the F N R selector has also been replaced
issue no2
having endless issues with hydraulic pump.. repaired twice but pump will only work for few days then looses pressure.. when stripping the pump, valve plate and pistons always gone..
each time pump comes back from repairs new oil & filter used but issue continues.. i was told i could be having a bypass on the valve banks or my oil cooler is not cooling the oil or i have a dirty hydraulic system or the hydraulic pump pressure compensator is not set correctly machine or either faulty
the front bucket lift and tilts ok when pump is operational but the backhoe functions tend to be slow especially the bucket when its halfway closing it becomes fast then opens fast till halfway and becomes slow, the swing and lift functions work fine, the hydraulic cylinders have had new seals installed