Vinpetrol
Well-known member
It just says pump pressure , it’s a reading in the menu that lets me see what the pump pressure is . It sits at 44 when idling and goes up to 380ish when working it hard .on a servo circuit
Vinpetrol
Well-known member
I found this in part of the hydraulic schematic . I don’t fully understand the drawing but would I be right to assume that V15 solenoid might be effecting my jacks ?
CPS
Well-known member
Yea definitely, it will cut out the flow to that jack leg.
CPS
Well-known member
Looking at it again id say it only blocks the flow to that jack leg.
Can you lift the blade and jack leg together
Can you lift the blade and jack leg together
V8Druid
do it as well as you can,but learn to do it better
that's main VD pump ... should have a servo pump some where
Vinpetrol
Well-known member
On parts of the hydraulic drawing it gives pressures like that at certain valves . I don’t think the resting pump pressure is necessarily the same as the pilot pressure . I could be wrong though
V8Druid
do it as well as you can,but learn to do it better
so the buttons are all that controls the jacks/blade - no prop. control? - just stab a button?? or is H and J a prop. feed from say a 2 way lever?
CPS
Well-known member
When none of those solenoids are powered up the blade and jacks will work together.
When v17 is powered only the legs will operate.
When v15 is powered only the right jack will operate etc
When v17 is powered only the legs will operate.
When v15 is powered only the right jack will operate etc
Vinpetrol
Well-known member
You select what blade /jacks you want to work by pressing their individual buttons then you press a button on front of rh control lever and this changes the rh control boom function to blade / jack function .
V8Druid
do it as well as you can,but learn to do it better
so the RH stick provides H & J prop feeds .. 15 and 16 control flow to each leg, 17 to the blade
J feeds the down circuit on the legs and up circuit on the blade
H feeds the down on the blade and the up on the legs
V8Druid
do it as well as you can,but learn to do it better
15 is down LH leg cylinder only
16 controls the RH down only
both fed by the J circuit
CPS
Well-known member
15 and 16 will block off the return when activated also... so locking out which ever circuit its in
Vinpetrol
Well-known member
Could both 15and 16 be faulty ?
V8Druid
do it as well as you can,but learn to do it better
it's almost the same set up as mine .. buttons for L / R legs and another for the blade ....
mine differs in that mine are supplied by a dedicated servo controlled lever ...
not a change over on the main sticks ..
however, all the solenoid valves are down stairs under the chassis, below the ring gear and therefore below the rotary coupling ..
that way it only has the two prop lines (the equivalent of your H & J) going through the rotary ...
get yer head under there Vin and see where the pipes trace back to from the blade/legs
if all those control lines (and solenoids are 'upstairs' you'd have an additional 6 lines, going through the rotary - and I doubt you have
my money's on those all being down stairs in the chassis
mine differs in that mine are supplied by a dedicated servo controlled lever ...
not a change over on the main sticks ..
however, all the solenoid valves are down stairs under the chassis, below the ring gear and therefore below the rotary coupling ..
that way it only has the two prop lines (the equivalent of your H & J) going through the rotary ...
get yer head under there Vin and see where the pipes trace back to from the blade/legs
if all those control lines (and solenoids are 'upstairs' you'd have an additional 6 lines, going through the rotary - and I doubt you have
my money's on those all being down stairs in the chassis
V8Druid
do it as well as you can,but learn to do it better
nope ...... the flow direction is determined by H & J prop. circuits from the RH stick when the changeover switch is activated to feed the legs/blade circuits ....
the solenoid merely determine which circuit is active
the circuit dia. shows dual directional flow at the solenoids
my money's on 15, 16 & 17 being down stairs in the chassis
Vinpetrol
Well-known member
I know what you’re saying but I think the wee number 3 on the drawing is the rotary coupling . There are some valves underneath though , will need to get some pics tomorrow .
I’m assuming that V15 is on the top half off machine though as the cable going into the valve that is leaking has Id tag on it
V8Druid
do it as well as you can,but learn to do it better
fair assumption .. now you tell me
.. that must be some rotary coupling ... however .. my premise on how it's plumbed remains the same ... H & J are your prop. feeds from the RH stick and the solenoids merely control the flow to each circuit (via the rotary which'd need an additional 4 galleries to mine to achieve that) ...are you sure '03' is the rotary -- that schematic shows a huge number of '03' galleries
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