6-20
Published 01-29-2014, Control # 496-00
SWING SYSTEM TMS800E SERVICE MANUAL
Disassembly
NOTE: Any maintenance requiring disassembly of the
water swivel should include replacement of all
seals and rings.
1. Remove the case.
2. Place the spool on a clean work surface in a dust-free
area and block the spool to prevent movement during
disassembly.
NOTE: Aligning discarded seals and rings in the order of
disassembly will assist with installation of new
seals and rings.
3. Remove the seals and rings from the spool.
Cleaning and Inspection
1. Clean the spool and case with a suitable solution and
dry with compressed air. Plug all ports with plastic caps.
2. Check the spool and inside of the case for scratches,
grooves, scoring, etc. If any grooves have developed
with a depth of 0.127 mm (0.005 in) the unit should be
replaced.
Assembly
NOTE: Lubricate the interior of the swivel to prevent
rusting from condensation.
1. Lubricate the spool, seals, and rings.
2. Install new seals and rings on the spool.
Installation
1. Install the water swivel on top of the hydraulic swivel with
the lug on the hydraulic swivel. Secure the water swivel
and the electrical swivel center post with the four bolts
and washers.
2. Connect the lines to the swivel case as tagged during
removal.
3. Install the electrical swivel. Refer to ELECTRICAL
SWIVEL - INSTALLATION in this Section.
4. Perform steps 8 and 9 of HYDRAULIC SWIVEL -
INSTALLATION in this Section.
5. Activate all systems, cycle all functions, and observe for
proper operation and any leakage.
ELECTRICAL SWIVEL
Description
The swivel assembly consists of a 20 conductor slip ring and
cover assembly.
Each brush set incorporates two brushes, leads, and clips
which are attached to a brush holder assembly. The brush
set leads are formed into harnesses which are routed
through the mounting plate on the swivel. The collector ring
leads are formed into harnesses which are routed downward
through the center of the hydraulic swivel. Extending from
the base of the hydraulic swivel, the collector ring leads are
also formed into connectors which plug into receptacles from
the chassis power supply.
The swivel cover is secured with a seal and bolts
The electrical swivel also incorporates a slew encoder. The
encoder controls functions in the rated capacity limiter and
working area definition systems.
Theory of Operation
The electrical swivel is located on top of the water swivel and
conducts electricity between the carrier and superstructure.
CAUTION
When removing seals and rings, avoid scratching
grooved and gland surfaces.
WARNING
Cleaning solvents can be toxic, flammable, an irritant to
the skin, or give off harmful fumes. Avoid prolonged skin
contact, inhalation of vapors, or smoking. Failure to
comply can result in injury or death to personnel.
CAUTION
When installing seals and rings, avoid stretching seals or
scratching grooved or gland surfaces.
CAUTION
Proper alignment when installing the case is required. Do
not force the spool into the case.
Reference Only
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