Sideshift Function; Supply Circuit Test; Sideshift Circuit Test - Cascade F Series Service Manual

T
ROUBLESHOOTING

Sideshift Function

3.3
There are six potential problems that could affect the
sideshifting function:
• Inadequate upper bearing lubrication or worn
bearings (see Section 4.2).
• Incorrect hydraulic pressure or flow from lift truck
(see Section 5.1).
• External leaks.
• Lower mounting hooks installed incorrectly (see
Section 4.1, Step 6).
• Worn or defective cylinder seals (see Section 4.3).
• Cylinder fittings or flow restrictors plugged, incorrect
type, or not installed correctly (see Section 4.3).

Supply Circuit Test

3.3-1
1
Check the pressure supplied by the truck at the
carriage hose terminal. Pressure must be within the
range shown in Specifications, Section 5.1.
PRESSURE TO THE SIDESHIFTER MUST NOT
EXCEED 3500 PSI (245 BAR).
2
Check the flow volume at the carriage hose terminal.
Flow must be within the range shown in Specifications,
Section 5.1.
3
Sideshift fully to the left and hold the lever in the
SIDESHIFT LEFT position for a few seconds. Release
the lever and check for external leaks at fittings, hoses
and cylinder rod ends.

Sideshift Circuit Test

3.3-2
1
Sideshift fully to the left. Turn the truck off and relieve
Attachment system pressure. Disconnect the SIDE-
SHIFT RIGHT supply hose from the truck hose terminal
and route to a drain bucket. Cap the supply fitting.
2
Start the truck and actuate the SIDESHIFT LEFT lever
for 5 seconds:
• If there is substantial hydraulic flow out of the
drain hose, the sideshift cylinder is faulty and
requires replacement.
• If there is no hydraulic flow out of the hose, check
for plugged or incorrectly-installed flow restrictor
washers and fittings. If there is still no hydraulic
flow, the problem is not hydraulic (see Section 3.3).
220526 Rev. 0
WARNING: Before disconnecting
hoses, relieve pressure in the Attach-
ment hydraulic system. Turn the truck off
and move the truck auxiliary control
handle several times in both directions.
SS0180.ill
Cap
Supply Hose end in
drain bucket
Fitting
Front View
1
Sideshift Right
Hose
2
5