> I have very annoying problem with the diff pump on my VG SIRA II, it
> keeps turning off and on by itself with no apparent reason (backing
> pressure and cooling water are fine).

I recall having a similar problem on our SIRA II, the warning "ping"
kept coming on but there was little other evidence of a problem. I
was recommended to toggle the "diff pump" switch at the back /
bottom of the machine....

it then went away and I was pingless!

Yours

Andrew




Dr A.M.Johnston
SPDU
Scottish Crop Research Institute
Invergowrie
Dundee
DD2 5DA
Scotland

Tel No: (44) 1382 562731 ext 3732
Fax No: (44) 1382 562426