Grizzly DEEP DIGGER Manual page 60

Creeping
Air in the hydraulic system
By-passing of the piston
Cylinder moving at different rates
60
PHASING PROBLEMS
A. Hose vibrating/squealing
B. Control valve shuddering
C. Lag in cylinder movement
D. Creeping when load is applied
A. Both cylinder move together until Master
is on depth stop then Slave stops
B. Both cylinders creep, Master cylinder stops
when it hits the depth stop but the slave continues
C. Master cylinder retracts but the slave extends
slightly
D. Master cylinder stationary but not on depth
stop, Slave creeps in
Cylinders connected the
wrong way around
They should be connected in series so that the rod end of the larger cylinder is connected to the base of the
smaller cylinder
Specifications are subject to change without prior notification
Check valve or Tractor valve leaking
Master cylinder piston by-passing (1)
Master cylinder piston by-passing (2)
Slave cylinder piston by-passing
From serial number 7027