Brother GT-3 Series Service Manual page 189

6. Replacing Parts
8.
Pull out the Pump Tube (3).
9.
Insert the new Pump Tube (9) in the U-shaped groove.
10. Apply some grease (SB3229001GREASE EM-30L) slightly to the new Pump Tube (9), 30-140mm long
from the edge of the Band, approx 0.3 gram. Take care not to apply too much grease.
180
(3)
(9)
30 mm
140 mm
GT-3 Series