Slow hydraulic lift on Cat D5B 98J

Have no idea about that brand but the usual check on hydraulics is will the valve/cylinders hold position. If they do I would think you are free to do flow adjustments if you have that feature. Problems might arise if you wind up with an unbalanced system where there are multiple cylinders.

Sir
Once again thankyou for your responses to my requests for info. I wont make a habit of saying this every time in the interests of not cluttering the forum so take it for granted that i really appreciate your prompt, honest and informative responses.
Ian

Do you have any pictures. I am wondering if the cylinders are old style large volume cylinders designed for large volume, low pressure hudraulic pumps. By working betterfor your brother after he adjusted his hydraulics for more flow it seems that could be it.

Not related to your hydraulic issues at all, but I notice on your threads that you refer to your 98J as a D5B. The 98J series are a D5, not the later B series, though your serial number is very close to the end of the production run of the 98J.

Do you have any pictures. I am wondering if the cylinders are old style large volume cylinders designed for large volume, low pressure hudraulic pumps. By working betterfor your brother after he adjusted his hydraulics for more flow it seems that could be it.

Rusted
You may be right. I was told when i bought it from Tillys in Toowoomba that it was a D5B. When i looked it up on the Richie wiki i saw that my serial number 2106 was higher than what they said. The dozer does gave a decal saying Special Application. If you look at Tillys website at this moment you will see several 98Js being currently dismantled and shown as D5Bs. Having said all this is my mistake of any practical significance eg getting parts.
Ian

[quote="Ianlr"]Rusted
You may be right. I was told when i bought it from Tillys in Toowoomba that it was a D5B. When i looked it up on the Richie wiki i saw that my serial number 2106 was higher than what they said. The dozer does gave a decal saying Special Application. If you look at Tillys website at this moment you will see several 98Js being currently dismantled and shown as D5Bs. Having said all this is my mistake of any practical significance eg getting parts.
Ian[/quote]

Ian

Highest serial # I have is 98J2151 ( not necessarily right), but for sure a D5. The B series can be easily identified quickly as the panel shapes etc were changed from the original in addition to the internal updates.

As far as external attachments such as a ripper go it shouldn't make any difference, as I believe the backing plate etc is the same for both (stand to be corrected there), for anything else I'd be looking for a parts book for your serial range.

Ian being a special application crawler it might only have a low volume pump Old Magnet will no doubt be able to check that off your serial number for you
and yes Old Magnet is 100% correct in does the ram or rams hold the scoop or do they drift

some more thoughts maybe being a SA crawler I assume came from the Downs it may have had a flow diverter valve put on for a air seeder and and you need to open that up to increase the oil flow

Paul

[quote="mrsmackpaul"]Ian being a special application crawler it might only have a low volume pump Old Magnet will no doubt be able to check that off your serial number for you
and yes Old Magnet is 100% correct in does the ram or rams hold the scoop or do they drift

some more thoughts maybe being a SA crawler I assume came from the Downs it may have had a flow diverter valve put on for a air seeder and and you need to open that up to increase the oil flow

Paul[/quote]

Paul
When i first saw it i thought it must have been a blacksoil tractor as the tracks and sprockets were in such good order. It also had extra lights on the front. Hastings Deering told me it was originally sold to a Lockyer Valley farmer. I found a sticker label on the air precleaner from a Dalby company. Tillys wouldnt tell me who sold it to them. So your thought about the air seeder is worth following up. The other thought is also worth pursuing. I was initially confused looking at at parts, maintenance and operation manuals where reference was made to a hydraulic oil tank under the bonnet at the rear of the engine. I couldnt find the tank and only after looking at other manuals specifically for special application dozers did i find detail about the shared transmission, steering clutches and external hydraulics. I will look again to see if there is a different flow rate and pressure for SA dozers.
Ian