Nilfisk-Advance CS7000 Service Manual page 274

Service Manual – CS7000
32. Slightly loosen the
"DOWN" Hydraulic Hose
the
Upper Cylinder Fitting
33. Jog the hopper lower button to run the pump
and force the oil out of the
at the
Hose Upper Cylinder Fitting
runs clear with no foaming or air evident in
the oil.
34. Tighten the
"DOWN" Hydraulic Hose
Upper Cylinder Fitting
35. Remove the cap from the
.
Fitting
36. Remove the plug from the
and reconnect the
"UP" Hydraulic Hose
Lower Cylinder Fitting
37. Run the hydraulic cylinder ram up and down several times using the hopper raise and hopper lower
buttons to check for correct function.
Note: There is a
lower (down) hydraulic cylinder
port that will shut off the flow of
oil through the fitting if the oil
flow rate exceeds 1.5 gallons per
minute. This is to prevent the
hopper from dropping down if
the "up" hydraulic hose or lower
cylinder fitting fails. If the ram
fails to retract downward, it
could be due to the
Let the hydraulic system sit idle
for a few moments to allow the
Velocity Fuse
retracting the ram again.
at
.
"DOWN" Hydraulic
until the oil
on the
.
Lower Cylinder
"UP" Hydraulic Hose
to the
.
inside the
Velocity Fuse
Velocity Fuse
to reset, then try
Lower
Cylinder
Fitting
.
Hopper System
Upper Cylinder
Fitting
"DOWN"
Hydraulic
Hose
Velocity Fuse
(inside lower
cylinder fitting)
274
"UP"
Hydraulic
Hose