PREPARING THE LOCOMOTIVE FOR OPERATION
Although your Y6a is ready to operate, a couple preventive maintenance precautions should be
observed to ensure the smooth operation and longevity of the model. First of all, make certain
that all of the small fasteners used to assemble the running gear are snug and have not come
loose during shipping. Secondly, the locomotive has been lightly lubricated during assembly
and testing, while this will suffice for initial operation and break-in, you may wish to further
lubricate the side rod assemblies by applying 1 or 2 drops of good quality fine oil to areas where
moving parts are in contact with each other (refer to figure #1). Your local hobby dealer should
be able to guide you in the selection of a suitable lubricant. Care must be taken to avoid soil-
ing the surface of the sound cams located on the rear-most drive axle (see figure #2). Should
this occur you will notice an alteration of the cuffing pattern heard during the operation of the
locomotive. This situation can be corrected by carefully removing the lubricant using a cotton
swab and alcohol.
LOCOMOTIVE AND TENDER CONNECTIONS
The Y6a locomotive and tender require that two pair of connectors be joined to allow the opera-
tion of the model. The connections are made by matching the shape of the connectors and
firmly pressing them together while holding them by the black housings (it is not possible to
incorrectly make these connections). With the connection made, the excess wire may be carefully
pushed into the locomotive and tender. When disconnecting the locomotive from the tender,
pull only on the housings - Do Not Pull On The Wires! It is advised that the wire connections
be made with the locomotive and tender in place on the track, do not attempt to move the pair
while connected together.
The stoker feed tube should be positioned inside the stoker feed-ramp receptacle under the cab
when joining the locomotive and tender. The feed-ramp will swivel from side to side during
operation to prevent binding. The rear cab deck apron should rest on the front edge of the
tender deck when you are ready to operate. The drawbar on the locomotive should be lined up
with the drawbar 'pocket' on the tender and the two units simply pushed together, the drawbar
will automatically lock in place when you hear the audible click of the drawbar pin locking.
To disconnect, pull on the ring hanging from the drawbar locking pin directly under where the
drawbar enters into the tender, a pair of tweezers will be required for this operation. You must
have patience to properly connect the loco and tender, there are many small detail items that
may be otherwise damaged.
POWER SUPPLY REQUIREMENTS
The Kohs & Company Y6a is a Direct Current (DC) electric scale locomotive. Do not attempt
to use AC power as damage will occur. The following criteria should be used when selecting
your power supply:
1) Direct Current (DC) which is filtered
2) 0-18 volts (DC)
3) Minimum available current should be approximately 8.0 amps