(2)
 Make sure that the warning notice is in position to tell persons not to operate the slat controls.

 Subtask 27-84-68-860-051
 B. Aircraft Maintenance Configuration
 (1)
 Make sure that the access platform is below the applicable slat.

 (2)
 Make sure that the slats are retracted (Ref. TASK 27-80-00-866-005).

 (3)
 Make sure that the applicable slat is held safely in position:

 -
for slats 1 and 2, held in position with a safety line

 -
for slats 3, 4 and 5, held in position with the BEAM SUPPORT-SLATS 3, 4 AND 5 (98D27804019000).

 (4)
 Make sure that the TOOL-ZERO LOCKING, FLAP SLAT CTL LEVER (98D27803500001) is installed on the flap/slat control-lever.

 Subtask 27-84-68-865-051
 C. Make sure that this(these) circuit breaker(s) is(are) open, safetied and tagged
 -------------------------------------------------------------------------------PANEL DESIGNATION IDENT. LOCATION -------------------------------------------------------------------------------49VU FLIGHT CONTROLS/SLT/CTL AND MONG/SYS1 5CV B06 121VU FLIGHT CONTROLS/SLT/CTL/SYS2 7CV R21
 4. Procedure
_________ R (Ref. Fig. 401/TASK 27-84-68-991-001) Subtask 27-84-68-420-054 R A. Preparation for Installation
 (1)
 Clean the component interface and/or the adjacent area with a MISCELLANEOUS (Material No. 19-003) made moist with CLEANING AGENTS (Material No. 11-026).

 (2)
 Make sure that the parts retained from the removed component are clean and in the correct condition.

 (3)
 Do an inspection of the component interface and/or the adjacent area.

R (4) For the slat tracks 2, 3, 5, 6, 7, 8, 9 and 12:
 (a)
 Apply a thin layer of COMMON GREASE (Material No. 04-022) to the interface of the actuator housing (2) and the rib.

 (b)
 Apply SPECIAL MATERIALS (Material No. 05-063) to the internal splines of the pinion assembly (6) and the interface of the pinion assembly (6) and the bearing (5).

 (c)
 Use a MISCELLANEOUS (Material No. 19-003) and CLEANING AGENTS (Material No. 11-026) to clean:

 -
the pinion assembly (6)

 -
the component interface and/or the adjacent area.

 (d) Install the bearing (5) on the pinion assembly (6) as follows:
 1 Align the pinion pin on the pinion assembly (6) with the fork
_
 on the bearing (5).

 2 Push the pinion assembly (6) and the bearing (5) together.
_ Make sure that the pinion pin engages with the fork on the bearing (5).
 (e) Apply a layer of SEALANTS (Material No. 09-018) or SEALANTS
 (Material No. 09-019) to the shanks of the bolts (1) and (7). R
R (5) For the slat tracks 10 and 11:
 (a)
 Apply a thin layer of COMMON GREASE (Material No. 04-022) to the interface of the actuator housing (21) and the rib.

 (b)
 Apply SPECIAL MATERIALS (Material No. 05-063) to the internal splines of the pinion assembly (23) and the interface of the pinion assembly (23) and the bearing (22).

 (c)
 Use a MISCELLANEOUS (Material No. 19-003) and CLEANING AGENTS (Material No. 11-026) to clean:

 -
the pinion assembly (23)

 -
the component interface and/or the adjacent area.

 (d) Install the bearing (22) on the pinion assembly (23) as follows:
 1 Align the pinion pin on the pinion assembly (23) with the fork
_
 on the bearing (22).

 2 Push the pinion assembly (23) and the bearing (22) together._
 Make sure that the pinion pin engages with the fork on the
 bearing (22).
 (e) Apply a layer of SEALANTS (Material No. 09-018) or SEALANTS
 (Material No. 09-019) to the shanks of the bolts (19) and (24). 
R  Subtask 27-84-68-420-052 
R  B. Installation of the Slat-Track Pinion-Assembly 
R  (1) For slat tracks 2, 3, 5, 6, 7, 8, 9 and 12: 
R  (a) Put the pinion assembly (6), together with the bearing (5), in 
R  position between the track ribs. Make sure that: 
R  - the pinion assembly (6) engages with the slat track 
R  - the greasers are aligned so that persons can get access to 
R  them. 
R 
R  NOTE : It is recommended that a used pinion assembly (6) and____ 
　
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