Brother International HE-800B Instruction Manual - English - Page 25

Lubricating the rotary hook, 3-15. Connecting the power cord

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3-14-3. Lubricating the rotary hook 3. INSTALLATION When first installing the machine and when the machine has not been used for an extended period of time, remove the bobbin and add 2-3 drops of oil to the rotary hook race (1) before sewing. 4755M Less More 3-15. Connecting the power cord < Seen from underneath table > Control box Rotary hook lubrication adjustment 1. Remove the rubber cap (2). 2. Turn the adjusting screw (3) to adjust the lubrication amount. * Adjust so that approximately 10 drops of oil are released when the sewing machine is run at a speed of 4,000 sti/min for three cycles to sew about 114 stitches. Use Kraft paper (4) or similar to catch the oil drops. As a guide, the optimum position can be obtained if the adjusting screw (3) is tightened as much as possible and then loosened about two turns. 4756M CAUTION Be sure to connect the ground. If the ground connection is not secure, you run a high risk of receiving a serious electric shock, and problems with correct operation may also occur. Connect cords that match the voltage specifications. (Refer to the next page.) (1) Filter box (2) Screws [4 pcs] (3) Staples [7 pcs] (4) Power cord 1. Attach an appropriate plug to the power cord (4). (The green and yellow wire is the ground wire.) 2. Insert the power plug into a properly-grounded electrical outlet. NOTE: • Take care when tapping in the staples Leg (3) to make sure that they do not pierce the cords. • Do not use extension cords, otherwise machine operation problems may result. Green and yellow wire (ground wire) 4935M HE-800B 16

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HE-800B
3. INSTALLATION
16
3-14-3. Lubricating the rotary hook
When first installing the machine and
when the machine has not been used
for an extended period of time, remove
the bobbin and add 2-3 drops of oil to
the rotary hook race (1) before sewing.
Rotary hook lubrication adjustment
1. Remove the rubber cap (2).
2. Turn the adjusting screw (3) to
adjust the lubrication amount.
* Adjust so that approximately 10
drops of oil are released when the
sewing machine is run at a speed of
4,000 sti/min for three cycles to sew
about 114 stitches. Use Kraft paper
(4) or similar to catch the oil drops.
As a guide, the optimum position can
be obtained if the adjusting screw (3)
is tightened as much as possible and
then loosened about two turns.
3-15. Connecting the power cord
CAUTION
Be sure to connect the ground. If the
ground connection is not secure, you
run a high risk of receiving a serious
electric shock, and problems with
correct operation may also occur.
Connect cords that match the voltage
specifications. (Refer to the next page.)
<EU specifications>
(1) Filter box
(2) Screws [4 pcs]
(3) Staples [7 pcs]
(4) Power cord
1. Attach an appropriate plug to the
power cord (4). (The green and
yellow wire is the ground wire.)
2. Insert
the
power
plug
into
a
properly-grounded electrical outlet.
NOTE:
• Take care when tapping in the staples
(3) to make sure that they do not
pierce the cords.
• Do not use extension cords, otherwise
machine operation problems may
result.
More
Less
< Seen from underneath table >
4935M
Leg
Green and yellow wire (ground wire)
Control box
4755M
4756M