KOBELCO highly recommends the use of a
hydraulic hand pump to release the swing brake
manually when the engines fails to start. Refer
the Fig. 8-13 to use the proper fitting
connector on P port. Remove the hose and
install the proper connector on P port. Install
the hydraulic hand pump and apply hydraulic
pressure as follows:
SK235SRLC-2 ... 28.5 MPa {413 psi}
8.3
RELEASING SWING BRAKE
Make certain that the attachment is on the ground to help prevent sudden rotation of the upper
structure before attempting to release the swing brake.
Refer to "8.4 LOWERING ATTACHMENT SUDDEN ENGINE FAILURE OCCURS".
Fig. 8-10
Fig. 8-11
In highly contaminated environments it is recommended to remove the whole swing motor assembly, if
a hydraulic hand pump is not available. Refer to the shop manual for special instructions or contact
your KOBELCO distributor for assistance. When the swing motor is removed, make sure to use caps
and plugs on hoses, tubes and fittings to protect the hydraulic system from any contamination. Also,
a cover must be used to protect the swing reduction unit. If this approach is taken, and the swing
reduction unit becomes contaminated, make sure to flush and clean the swing reduction unit. Refer to
page 4-11 for proper oil and component capacity.
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8. SPECIAL PROCEDURES
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8-8
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