Singer 601 - Machine Specifications; Specifications for Regular Machines; Specifications for U.T.T., Wiper, Back Tack Machines

NOTE: This timing must be adjusted as accurately as possible. It tint
operate to trim the threads, it the timing is slow. will cause the take-ui
and stop anywhere before or beyond the correct upper stop position.
is too fast, the thread puller will not
ver to slow down on its upward stroke
SETTING TRIMMER SOLENOID
The trimmer solenoid D is correctly set on the machine
before the machine leaves the factory. It. however, this
setting has been disturbed and resetting becomes necessary,
adjust as instructed below. (Fig. 70)
To adjust setting, loosen the two screws It holding the
trimmer solenoid bracket F and move bracket as requited
to set:
Angle - Plunger G on trimmer solenoid should be aligned
with trimmer solenoid link H.
Stroke - Clearance between flange of plunger G and sole¬
noid D should be 4.0 ~ 4.2mm (.157 - .165")-
SETT1NG STATIONARY KNIFE
The stationary knife J should be set so that the clearance
between its cutting edge and the right side ot the feed dog
K is as shown in Fig. 71.
To adjust, loosen the two screws L holding the sta¬
tionary knife J and move knife to the left or right as re¬
quired. then firmly tighten the screws L.
When replacing the feed dog, be sure this clearance is
provided as instructed above.
L
43mm FOR 591 D 21 5BD/BF/GD/GF
4.5mm FOR 591 D31 5 BD/BF/GD/GF
0 3mm FOR MACHINE OTHER THAN
ABOVE VARIETIES
Fig. 71
NOTE: If the clearance mentioned above is too large,
the length of thread end under the fabric will become
longer.
SETTING THREAD PULLER
When the thread puller M is in its rest position, its right
edge should be parallel with the edge of bed N as shown in
Fig. 72.
Fig. 72