OK it's a hydraulic pump belt operated iirc. The cross feed is a
rachet thingy that obviously takes some oomph to operate and push the
table, so it suggests that the hydraulic long feed is marginal or the
amount of oomph required is abnormal if it is being slowed down.
So is the belt tight, is the pump worn, is the workshop unusually cold
making the oil more gummy, is the cross slide adequately lubricated?
Some of the oil from the long feed cylinder goes via drillings to
lubricate both the long feed and the cross feed - are the drillings
blocked. Are the catch buckets at each side of the base under the
table filling with oil that then drains back to the tank as it should,
or are they dry? (This is the oil that lubricates the ways)
Nothing too unusual at all with that.
Hydraulic cylinder speed is a function of flow control, and whilst
pressure in the hydraulic system is constant, the speed will vary with
the volume of oil delivered to the cylinder in a given time.
The cross traverse on a 540 is sub-ported off the longitudinal travel
- it won't work unless this valve is opened first - so in effect it is
'stealing' some of the flow volume from this.
When it slows down a touch all you have to do is crack the main table
valve open a fraction more and the problem goes away.
However, if you already have this all the way open and your table
isn't moving so fast that it tries to launch itself across the
workshop, then you have either a major flow delivery or leakage
If it's delivery, then the problem may well be in the tank. If this
hasn't been cleaned for a while you may well find that half the
contents resemble jelly more than oil, and this will neatly block the
If it's leakage, then the problem will probably be in the cross
traverse rams inside the main valve block, but without stripping the
whole thing you won't know.
Finally, it might be as simple as some air in the system. The system
is self bleeding, but it needs to run for a little while first to
achieve this. The remedy is to set the table to maximum X traverse at
a slowish speed and let this run for a while.
With regard to oil, I use Castrol GC32 which was a little easier for
me to source than Mobil Vacuoline.
being as you don't use it much
hope you haven't overlooked the obvious
there is a small lever on its own...to the left on the control plate
this controls the wumpth that is given to the x-feed.
you can have so it gently activates it ...or have it so it almost
jolts it .
this i think is a feature to get a better finish out of it.
also on the big handle on the front within is an x shaped small
knob .......if this is tightened right up the x-feed will struggle.
all the best.markj
Over and above everybody else's comments. The 1400 has a Purolator "twist the
handle to clean, every few months" filter. If there is a similar one in the
540, is it blocked up with sporge?
Had the 1400 running for 6 hours solid today. The workshop got nice and warm.
no such luxury's on my 540 ..
it relies on a wire mesh basket for the oil to go into before it
enters the sump ......
plus the wells at each end of the table act as settlement reservoirs.
and the vast quantity of oil in the tank .with oil pick-up high ...so
that the rest of the crap settles to the bottom of the tank.
the oil pick up has another fine mesh cylindrical filter....this may
be worth a check .but requires you to...remove front panel, disconnect
hydraulics, pull the whole tank out..........unbolt the rubber mounted
motor and hydraulic unit from the tank .and invert it to get at the
if you get that far ...you may as well empty the tank .clean the
tank .and put new oil in it. 18 litres / 4 gallons of Mobil vacuoline
1405...this should be changed every twelve months if you use the
machine every day
all the best..........mark
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