Barko HARVESTER 240B, Operator'S Manual, Page: 133 / 174

43-7
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HYDRAULIC COLLECTOR OVERVIEW
All hydraulic components below the turntable bearing continue to be operable during rotation of
the upper assembly because of the hydraulic collector. Located on the rotating turntable assembly, the
collector is so designed as to allow the flow of hydraulic fluid to lower hydraulic functions at all points in the
turntable rotation. (On most stationary electric machines, an electric collector is used.)
See Fig-1
for
breakdown of a typical hydraulic collector (your collector may differ).
Fig-1
1 INSPECTION & COLLECTOR PERFORMANCE
Inspect the Hydraulic Collector for any indications of leaking.
Ÿ
Tighten leaky hydraulic fittings. Be careful not to over-tighten to avoid threads stripping.
Refer to your BARKO Service and Parts manuals for service and parts information.
Internal oil bypass is generally the result of internal seal failure or other internal damage to the collector
housing and/or spool. A hydraulic oil circuit used to control a certain function may “leak” to the circuit of
another function. Symptoms of Internal Oil Bypass can be, but are not limited to...
Ÿ
Hydraulic Pump stroking unintentionally
Ÿ
External leaking may or may not be present
Ÿ
Loss (or a change) of control functions
If Internal Hydraulic Oil Bypass is believed to be occurring, service or replace your Hydraulic
Collector immediately.
Internal Hydraulic Oil Bypass
TORQUE ARM
MOUNTING PL
TORQUE ARM
SPOOL
BARREL
SEALS
RETAINING PL
SCREWS
SAFETY
WIRE
SAFETY
WIRE
06/03/2019
Updated
OPERATOR’S