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Technical Manual:
Decorative/Overedge & Hosiery
M and MG Class
Machine Set-Up & Operations
OUT OF THE BOX
1) Upon removing the
machine from its box observe its threading carefully
and compare it with the threading diagram supplied with
the machine.
Keep this threading diagram for future
reference. The matter of threading is very important
and if difficulty arises, the threading of the machine
should be compared with the individual diagram supplied.
Threading is simple, but it must be accurate.
2)
Secure the machine mounting assembly to the table with
the three screws provided. This assembly should be:
| A. |
Parallel with
the center line of the motor. |
| B. |
When the machine
is set on the assembly, the front of the machine
will be three or four inches back from the front
of the table with its hand wheel to the right
of the operator. |
| C. |
The hand wheel
belt groove should line up with the motor pulley
groove, when the motor pulley is in the running
position. |
3)
Check the Hand Wheel (belt) Guard to be sure it does
not hit the belt. Adjust if necessary; by removing screw,
repositioning, and replacing screw.
4)
Assemble thread stand and screw its base to the table
at the rear of the machine.
5)
The thread guides at the top of the thread stand should
be directly over the center of the cones of thread.
6)
The thread or yarn should be wound on cones, which should
stand vertically. The thread from these cones should
lead up to the Safety Cross Rod (8-52-J) through the
thread eyes and diagonally downward to the machine.
Note: The Safety Cross Rod should be installed
with the thread eyes below the rod. Care should be taken
to be sure the threads are far enough apart so that
they will not whip together when the machine is running
at speed.
7)
Be sure the thread will come off the cones readily,
with uniform tension and that it cannot catch under
the cone or elsewhere along its path.
8)
Since the oil has been drained from the machine before
shipping, the main reservoir must be filled before the
machine is used. (Note section 15)
SPEED
9)
The Merrow Class MG and Class M machines are designed
to run at maximum speed of 5500 stitches per minute.
Some work is efficiently handled at 5500 stitches per
minute but it has been found that maximum efficiency
for some operations is attained at a speed of about
5000 stitches per minute.
MOTOR
10)
To obtain full efficiency the motor must be kept in
good operating condition in order to start and stop
the machine with minimum delay. Every attempt should
be made to avoid driving the hand wheel from an oversize
pulley, especially when the centers of both pulleys
are relatively close together. Failure to avoid this
situation can result in belt slippage and less control
of starting and stopping the machine.
11)
A V-Belt Hand Wheel with an effective pitch diameter
of 2 1/8" is supplied with each machine. A standard
3/8" endless V-Belt is recommended to connect the
Hand Wheel to the motor pulley.
12)
The top of the hand wheel must turn away from the operator.
The machine sews with clockwise rotation only (when
viewed from the Hand Wheel).
13)
Consult you nearest Merrow Distributor to assure proper
motor set up.
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11 Patterson Brook Rd.
• West Wareham, MA USA 02576
Tel: 800.431.6677 • Fax: 508.295.8897
info@merrow.com
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2004 Merrow Sewing Machine Co. All Rights Reserved. |
