HYDAC International RFLD Series Service And Parts

1. Maintenance
1.1 General
Please follow the maintenance instructions.
1.2 Installation
Before installing the filter into the system, check
that the operating pressure of the system does
not exceed the permitted operating pressure of
the filter.
Refer to the type code label on the filter.
Filters must be flexibly mounted and not installed
rigidly to the floor or used as a pipe support.
When installing, ensure that system forces
cannot be transferred to the filter. A filter with
a stand may only be installed to the ground if a
compensator, expansion loop or similar device
installed in the line.
1.3 Commissioning
1.3.1 Ball Change-Over
Valve "A"
Check whether or not the stipulated filter
elements are in place. Put on cover and tighten
cover screws with the stipulated torque value.
Open the ball valve in the filling tube, put the
lever into center position and fill the filter via the
system (both filter sides are filled).
Undo the vent screws on the covers by a
maximum of 1 rotation. As soon as oil begins
exiting at the vent screws, close them again.
After that, change over to a filter side by
throwing the control lever. Check the filter for
leakage.
FIL1610-1839 / 04.19
Filters
RFLD Welded Series
Service and Parts
up to 3962 gpm (15000 l/min), up to 232 psi (16 bar)
1.3.2 Segment Change-Over
Valve "B"
Check whether or not the stipulated filter
elements are in place. Put on cover and tighten
cover screws with the stipulated torque value.
Open the ball valve in the filling tube, put the
lever into center position and fill the filter via the
system (both filter sides are filled).
Lever indicates filter
not in operation.
Undo the vent screws on the covers by a
maximum of 1 rotation. As soon as oil begins
exiting at the vent screws, close them again.
After that, change over to a filter side by
throwing the control lever. Check the filter for
leakage.
1.3.3 Flap Change-Over
Valve "C"
Check whether or not the stipulated filter
elements are in place. Put on cover and tighten
cover screws with the stipulated torque value.
Open the ball valve in the filling tube. Turn
handwheel until center position is reached
(observe signs on the gear shift linkage of the
change-over valve or position indicator on the
gearbox). Fill the filter via the system (both filter
Spindle setting
sides are filled).
Left Right
Filter in operation
Undo the vent screws on the covers by a
maximum of 1 rotation. As soon as oil begins
exiting at the vent screws, close them again.
Carefully turn the handwheel further to one
filter side. Once again, check the signs on the
gear shift linkage or position indicator on the
gearbox. These display which filter side is now
in operation. Check the filter for leakage.
1.4 Maintenance Tools
Size Vent Plug
13XX – 150XX VSTI G ½
Cover
Value Nm [ft-lb]
Int.
Size plate
Hex
bolts
Steel
Hex
13XX M20 x 70 170 [125]
30
Hex
25XX M16 x 50 100 [74]
24
Hex
40XX M16 x 60 100 [74]
24
Hex
52XX M20 x 70 170 [125]
30
Hex
65XX M24 x 70 170 [125] 140 [103]
36
Hex
78XX M24 x 70 170 [125] 140 [103]
36
Hex
150XX M24 x 90 170 [125] 140 [103]
36
1.5 Torque Values
Type Torque Nm[ft-lb]
VM/VD-clogging
33 [24]/100 [74]
indicators
Bowl/ Do not Torque
Lid or end cover
(See 1.3 and 2.2)
Vent Drain Int.
Size
Plug Plug Hex
VSTI
Hex 10
G1/2
1300
1320
VSTI
Hex 10
G1/2
VSTI
Hex 10
G1/2
2500 -
15020
VSTI G1 Hex 17
Int. Hex
Hex 10
Torque
Stainless
Steel
80 [59]
60 [44]
60 [44]
80 [59]
Torque Value
Nm[ft-lb]
80 [59]
80 [59]
80 [59]
200 [148]