Brother MFC990CW Service Manual page 266

Maintenance unit
(2) Release the right end of the switching lever guide from the maintenance unit and remove it.
Assembling Notes:
• When mounting the switching lever guide on the maintenance unit, apply the specified
lubricant to the specified point, referring to
• When mounting the switching lever guide on the maintenance unit, put it on the CR
guide rail and then lightly press it.
(3) If the ink absorber box has not been removed, pull out the main drain tube from the ink
absorber box.
Note: Pinch the end of the main drain tube with a clip in order to prevent drained ink from
leaking and the machine from getting stained with leaked ink.
(4) Remove the three screws in the order of
unit and detach the maintenance unit from the engine unit.
Assembling Notes:
• When mounting the maintenance unit on the engine unit, fit the two bosses of the shaft
holder (on the left side of the maintenance unit) into the two holes under the CR guide
rail.
• When securing the maintenance unit with three screws, tighten these screws in the order
of
• When routing the cap lift cam switch harness, pass it through the cable guide on the
maintenance unit. (See the illustration below and on
CR guide rail
CR support chassis
(Front)
Carriage motor harness
as shown below.
Remove these screws in the order of
1
to 3 . Tighten them in the reverse order.
3
6-82
Section 6.2.
to (as shown below) from the maintenance
page 6-78.)
Switching lever guide
Apply grease
here.
1
2
Taptite, cup B
M3x10
Maintenance unit
ASF motor/encoder
harness
Cap lift cam
switch harness
Cable guide
(6_76)
Confidential