Barko 350 SE Service Manual Download Page 108

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page 108

375 SE

800-00162

COLLECTOR INSTALLATION

WARNING

Do not remove collector cover or attempt maintenance until power is

Do not remove collector cover or attempt maintenance until power is
disconnected and locked. Electrocution may occur.

disconnected and locked. Electrocution may occur.

1. Fasten the collector mounting tube to the stationary member of the equipment it is to be used on.

2. Secure the core assembly to the mounting tube with set screw collar located at the base of the core assembly.

Tighten set screws to 45 - 55 in. lbs. to keep core assembly stationary (if this is not done, the core can turn,
twisting the center harness wires).

3. Attach the center harness to the core assembly with set screw-type connectors by slipping the brass sleeve over

the stripped wire ends and tightening the set screw. Screw the nylon cover down over the sleeve for protection.
Use care to keep the center leads as short as possible when connecting the center harness to prevent the wires
from catching on any moving parts. NOTE: When the collector is shipped from the manufacturer with a pre-wired
center harness, the connectors used between core assembly and center harness will be crimp-type wire connectors.
When replacing, use the set screw-type connectors instead.

4. Run the center harness through the center of the core assembly to exit at the bottom of the drive tube. This

harness is connected to the electrical components in the stationary member.

Typically, the brushes, base bracket, and cover will turn with the rotating member of the equipment upon which it is
located and can move continuously around the core assembly, providing uninterrupted electrical contact.

5. Rotating the brushes around the core is accomplished with a boss in the base bracket. This is normally tapped to

1/2-13UNC thread and a threaded pin inserted. The other end of the pin must not be fastened tightly to the rotating
member, but must be allowed to "float". This is very important on machine that may acquire and orbiting condition
as the equipment ages. This type of wear will put stress on the collector and may ultimately break the base if it is
bolted tightly. If the turning pin is tightly mounted on the rotating member, it must then be small enough on the
opposite end to float within the boss.

6. Attach the brush shunt wires to the brush harness with mating knife disconnect terminals (allows for quick

disconnect of the harness, should removal of the collector be required) and protect them with the plastic sleeve. Be
sure terminals are completely covered by the plastic sleeve. NOTE: Some electrical collector harnesses use
multiple circuit electrical connectors or plugs. These should be disconnected and connected carefully to avoid
damaging the contacts.

7. Run the brush harness so that it exits through the base bracket and is connected to the electrical components in

the rotating member.

COLLECTOR REMOVAL

WARNING

Do not remove collector cover or attempt maintenance until power is

Do not remove collector cover or attempt maintenance until power is
disconnected and locked. Electrocution may occur.

disconnected and locked. Electrocution may occur.

1. Loosen the socket screws at the bottom of the core assembly. This will allow the core to be lifted off the mounting

tube.

2. See Collector Installation for replacement procedures.

ELECTRIC COLLECTOR MAINTENANCE CONTINUED...