magirus skrev:Hello Mr Druid.
Whats up?
Hi Lars,
et al 
Sorry for the lack of input
..... I've been a bit pre-occupied
..... 'Drema troubles
I'll put a few posts together shortly and let you all know what's been 'afoot'
I've been banging my head against a '
metal wall' for a week ..... getting increasingly frustrated, but think I may have a
handle on it today .... now just need to fix the problem ....
Hydraulics went 'dead' on me .... mid job
My beloved 'Drema developed a fault and a weird one it was too.
I'd been sorting out the new '
stand' for our tanks last wednesday ... pipe work first and ventured up into the area to be cleared the following day.
She'd been running fine all day and working almost constantly for 5-6 hrs. Not exactly hard, but probably more than I usually do with her digging/dumper loading, etc..
Anyway, had her out at full stretch emptying a bucketful, went to pick her back in to me and nada!!
.... dead on the stick??
thought I'd moved the left arm and knocked the dead man out
... nope!
Tried again and very little feel to the stick but it moved/lifted a little ..... slowly.
VA-r rotated/tilted,
bucket crowded, dipper'd come in, but all didn't seem quite right.
Having been through this lot, went back to the
boom and was able to lift it a few feet at a time,
before losing lift, each time?
eventually got it back to me, swung around and parked the bucket on the deck, by closing down the VA on the boom, rather than dropping the boom. VA will lift, but similar to main lift ... fades out after a few seconds.
No strange noises but can grab a handful of stick, without getting thrown out the seat?
Plenty of
oil, and no visible leaks .... first thought was
pressure relief dumping, but can't hear it doing it ..... no squealing/whatever.
Next thought was pilot
circuit?
I could also hear something 'click', over my right shoulder/behind me when it 'lost it'?? As in electrical type click ... I thought??
A discussion on pilot circuit filters on the UK forum came back to mind and recalled it being said that it can give vague/dead sticks??
Rang Hydrema hoping to speak with Paul Weeks ..... the service manager, who used to service this old girl, when Derek Bushrod the previous owner, from new, had her and who seemed to know her intimately, when we last spoke.
Sod's law ... he'd just left for a Hospital appointment .... would be back in, in the morning. So he was going to be the first call in the a.m. , Friday.
This was 3.45 Thursday last ..... left her cool down for an hour, but not really that hot .... second light out of eight .. IIRC 40C, or could have been 3rd - 50C, so not what you'd call hot ....... Better-ish but still no real feel/power?
The frustrating / annoying bit is instead of being beside me
tool box, as usual ... she was parked up beside the driveway.
I was going to have a wander back up and give her a try shortly, but thought to leave it 'til I'd spoken with Paul on the Friday.
The other dilemma was if she was 'usable' ... or better than she was earlier that day, did I try and fetch her back down and if she gave up the ghost, en route we may end up blocked in ....... so a conversation was deffo required.
Also gave Mog ... me mate who delivered her here, a ring as he's pretty knowledgeable and hands on, but it was a new one on him .... he was gonna have a think and talk to me later that day
Did think to give Tim a call (a real knowledgeable guy on the UK forum) ....... then realised I didn't have his number in me phone !!
Only other thing that came to mind was a strange 'parp'/pharty sort of noise ... only once and brief about 11.30 thursday morning .....we both heard it (neighbour) ... and I stopped immediately, left her ticking over and jumped down for a walk around and bonnet up .... nothing.
thought she'd blown a 1/4"
hose?
It wasn't giving any fault and didn't for another 4+ hours???????
She'd been performing well and had had her up on two wheels a few times during the day reaching over the side .... a full 5 ft bucket under the VA-r is a fair bit of weight at full stretch!!!
As usual she'd been as sharp as a
pin and completely responsive ..... 'til 3.45 !
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/WP_20160901_16_51_45_Pro_zpshuc42pmz.jpg
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/WP_20160901_11_47_24_Pro_zpsob7jcm6m.jpgThe main Relief
Valve was my other suspect, aside from the servo circuits ...... or a pump had 'let go' but no horrible noises!!!
been getting loads of advice off friends on the UK forum and the first thing I did on the Friday morning was pull the return filter ..... for piece of mind
desperately wanting to eliminate one guys's first doom and gloom post of the previous night with 'pump's fooked', first thing done was to pull the return filter.
Friday morning did not look promising ... very wet Velux in the bathroom first thing ... bugger
.... that wetting drizzly rain that soaks you through, but by the time I'd had me brekky and put in an appearance on the UK forum to see if anyone'd had a brain wave over night it'd backed off !!
Stuck some tools, bucket, bowl and lots of clean rags in the back of the P38 and rolled off up the drive .... anticipating plenty of to-ing and fro-ing !!
pulled the top off and had a look at the wand .... pretty fair ....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_11_34_34_Pro_zps7ccdelbv.jpgthis was what wiped off ....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_11_36_39_Pro_zpsm69ffsdw.jpgobviusly metalic as was stuck to magnets ...... but significantly no large lumps lower down the wand.
...... so got that nice new shiny, clean filter out .......
... and let it drain out ..
forgot a pic, but you know what it looks like .... seen it before when it went in a few weeks ago ....
eventually got it drained and this is what was in the bottom/pleats .....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_12_24_47_Pro_zpsnejdfojc.jpga few more bits of the inside of a hose ...... from somewhere on her and a few bits of lacquer !!
but most importantly .... now't metalic
gave it all a thorough cleaning and dropped it back in !!
dropped the mirror off the bonnet and got that up, so that I could get Aiden (a plant fitter who'd made a few suggestions) some pix of the motor mounted pumps .....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_11_31_09_Pro_zpsbtskz1kz.jpg plus quite a few of these .......
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_11_31_23_Pro_zpsyt9cych1.jpgvery difficult to get any decent angles for good pix as there's always something in the way of the main pumps .... from every angle ..... Like a 'rat's nest' of plumbing in there !!
took the O ringed
cover off the timing chest, where the drive is for the motor mounted pumps and was expecting to see a longer
shaft and a
keyway .....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_12_46_30_Pro_zpsbxk4k2iy.jpgbut was greeted by this
...... VFT (
very ****ing tight) and if the
key'd sheared, would've expected to have seen it loose?
did not want to go fannying about with it up there on the dirt and away from all me toys ... sorry meant tools !!
So replaced the cover and whipped off the
cab's belly plates, in a futlie attempt to try and trace where the plumbing went (see "
rats nest" above)
so returned to 'under the cab' trying to see/spot any likely candidates for a servo circuit RV ....... sod all immediately evident, but did locate the servo filter and traced a hell of a lot of all the servo hoses, searching for anything that looked vaguely like an RV ...... NADA
so whipped the filter out
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_13_41_57_Pro_zpsakrigj3w.jpgabsolutely minging .....
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_13_42_30_Pro_zpsnasxwund.jpgApologies if some of the pix are a bit .... so so .... oily finger print on the lens.
so off to the bench and the
compressor to give this as good a clean as I could manage
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_14_25_42_Pro_zpsxs5jdutn.jpggot a set of numbers off it and looked like a Hydrema part no. so will order a new one shortly.
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/Hydrema%20Troubles/WP_20160902_14_25_27_Pro_zpsuza7wgwa.jpglooks to be a pressure side filter as opposed to a return and keeps all this crud out of the
solenoid valves .... hopefully !!
so ...... replaced the 'relatively cleaner' filter and had yet another look for anything that might be an RV in anything I could see that was on the servo circuit ..... tranny
valve block, foot pedals, anything I could associate with the circuit and still found sod all.
I'd been trying to get a hold of Paul Weeks all morning ... to hopefully pick his brains, but after an afternnon out the office, thursday, he was a 'busy bunny' !!
Eventually spoke with him just before three and although wanting to be helpful .... it's many years since he's seen the ol' girl and he'd never had this issue with her.
How ever ..... and you lot got to keep this to your selves ..... as I have the only M1500 in the UK and I'm the only bloke who ever rings up about 'em
.... or is ever likely to (Paul's remarks/comments)
...... he was going to send me their copy of the full workshop manual ..... could I send him an email with my addy so he could get it packed and on a carrier that afternoon ..... could I ever
...... straight down the house and required email sent ... after of course the sincerest of huge thank you,s ever .... and a few more in the email
so hopefully ..... I would have a book of words ...... and piccies ..... that would point me in the
direction of all said elusive bits, shortly
I owed the man a large contribution to the Hydrema boy's crimbo party fund and'll see about sorting it out somehow soon
Anyway ...... no metalic crap in the return filter, the little 'un cleaned and no RV valve found ... there didn't seem much else for it, but to run her up and give her a few revs in the hope that summat might shift
Plus I dearly wanted to get her off the soft and out the way of the job, before Saturday's forecast
deluge ... was still pretty dry and drive-able at that point.
In between all this I'd had Pam 'bothering me half a dozen times
... she'd decided to come strim the drive verges, close by
- very conducive to peace and quiet, to think
- out of cord/lost the cord head collet/had to fit a new cord head and then she was in my ear with the buzzy lil' bugger when I wanted to listen to my baby, from cold. had to ask her to either stop for ten minutes ..... or sod off elsewhere
So wound her over .. first turn and away .... usual hissy noises, clunks, buzzers, pressure
indicator light went from
red to
green, valves under my feet made their usual whirs and clunks and everything seemed 'normal'!!
sticks had their usual 'resistive' feel so ....picked the boom, dipper in/out, bucket crowded,
steering worked, she went forwards/backwards, blade worked and axle locks came off
Got the arse end in the
air with the boom, dragged all the water pipes under her and repeated the process with the front end, so' I could get her out of where she was sat and back on terra firma.
she came out, but was not right
.... drive was fading in/out as was the boom, etc. after a few minutes running !!!!!!!
swapped the bucket for the forks and picked me pallet of buckets up
..... slowly, jerkily and at an 'intermittent pace' ...... to head her home after turning her around
..... I wanted to be facing forwards for any possible eventful run,
especially as I now had no O/S mirror and steering her backwards is exciting enough,
when it's all I have to think about
... the rear
wheel steer's not a problem, remembering to reverse all steering actions, 'cos right is left, etc. is 'different' !!
I'm ok after half an hour doing it .... but it does not come naturally straight off yet.
by the time I'd done all this we were up to 30C on the lights and she was not so co-operative, so sat her for an hour to cool a bit.
Steering and brakes seemed to be fine ..... the first bit is a good 1 in 5 .... down hill .... she would not have made it if it were up hill, even in crawler
got up our drive, slowly and resorted to crawler for the last 100 yds or so
.. drive kept fading out
... stop, go again and it'd fade fairly quickly.
anyway sheended up sat in her usual spot last Friday night ......
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/WP_20160902_18_08_47_Pro_zpsevzdgpxg.jpgright next to my extensive toy, sorry
tool collection, awaiting the arrival of Paul's exceptionally generous gesture. Couldn't see as there was a lot more I could do, until I can positively identify either the servo RV or the main PRV
Dropped the VA-r off, just in case/to prove to myself it had sod all to do with it and I noticed I'd cracked a pin
retainer, so that's something else to pull to bits and repair too !!
Originalets URL: http://i1275.photobucket.com/albums/y450/v8druid/WP_20160902_18_09_00_Pro_zpsiiojptik.jpgPlus I'm half way (well 90% ) through a mount for the flail, so plenty to do !!
Had considered hiring in a 3 or 4 tonner from the boys in the village who do plant, for the weekend to get it all finished off ..... neighbour didn't seem keen on having to shell out though!!
"plenty of time ... we can wait 'til you've sorted yours" It'd be ok, if it didn't rain too hard, as I'd filled all the drainage ditches as they needed to be re-routed ... hence even considering hiring a weapon.
Would be 'kin hard work with jake ... too
tight and awkward for a 180
spoilin´a whole day here at home 
