Great Plains DVN8552 Operator Manual User Manual
Page 29
Great Plains Manufacturing, Inc.
Table of Contents
Index
Troubleshooting
25
2014-02-12
550-353M
Transport
Problem
Cause
Solution
Wings Fail
to Unfold
Hydraulic hose disconnected.
Failed hydraulic hose tip.
Transport locks engaged.
Connect hydraulic hose.
Replace tip.
Disengage transport locks.
Wings Fail
To Fold
Hydraulic hose disconnected.
Failed hydraulic hose tip.
Low hydraulic pressure.
Connect hydraulic hose.
Replace tip.
Increase pressure to be>1500psi (10.3x10^6 Pa).
Folds/
Unfolds Too
Slow
Failed hydraulic hose tip.
Replace tip.
Folds/
Unfolds Too
Fast
Cylinder orifice removed.
Replace orifice in cylinder ports.
Lift Circuit
immobilized
Rebound valve locked.
See dealer.
Lift Will Not
Go Down
Transport locks engaged.
Depth stop engaging.
Failed poppet valve in depth stop.
Depth stop failing due to hose routing.
Disengage transport locks.
Readjust depth stop.
Replace poppet valve in depth stop.
Check routing with hydraulic layout, “Pre-Delivery
Manual”.
Machine
Bouncing
During
Transport
Excessive speed.
Slow down (18 m/h)/(30 km/h).