4. Procedure
_________
Subtask 27-84-61-820-061-A
A. Preparation for Installation R **ON A/C 001-049, 051-099, 101-149, 151-199, 201-299, 401-499,
(Ref. Fig. 402/TASK 27-84-61-991-003-A)
**ON A/C 301-399,
(Ref. Fig. 402A/TASK 27-84-61-991-003)
**ON A/C ALL
(Ref. Fig. 405/TASK 27-84-61-991-005)
(1) Use the GAUGE-SLAT TRACK SETTING (98D27804021000) to set the track datum:
NOTE : This procedure is necessary when all the side rollers are
____
removed.
(a) Install the applicable setting track (44). (For the track 4, install the slip gage (43) between the setting track (44) and the rubbing block on the datum rib).
NOTE : The slip gage will give the necessary clearance of between
____ 1.25 mm (0.0492 in.) and 1.45 mm (0.0570 in.) at the track 4 forward side-roller.
(b) Install and lock the two clamp assemblies (45) at the location of the non-datum side-rollers:
-turn the thumb screws (46) equally until they stop.
(c) Install the gage assembly (47) with the washers (27) and the bolts (26) at the the location of the aft datum side-roller:
-turn the torque screw (49) on the gage assembly (47) until it stops, and lock it in position with the thumb screw (48).
(d) Do the procedure again for the forward datum side-roller.
Slat-Track Rigging Tools
Figure 405/TASK 27-84-61-991-005
1EFF : ALL 1 27-84-61 Page 437
1 1 May 01/04
1 1
1CES 1
(2) Calculate the thickness of the datum side-roller shims (28): NOTE : This procedure is necessary when all the side rollers are
____
removed.
(a)
Remove the bolts (26), the washers (27) and the gage assembly
(47)
from the location of the aft datum side-roller.
(b)
Set the micrometer (51) on the gage block (53) to zero.
(c)
Install the gage assembly (47) on the gage block (53) and lock it in position with the clamps (50).
(d)
Move the micrometer (51) in the gage block (53) until it touches the gage assembly (47) and lock it in this position with the screw (52).
(e)
Remove the gage assembly (47) from the gage block (53).
(f)
Install the serviceable datum side-roller (25) on the gage block
(53)
and lock it in position with the clamps (50).
(g)
Adjust the micrometer (51) until it touches the datum side-roller (25). Make a record of the dimension shown on the micrometer (51).
(h)
Use an external micrometer and assemble the shims (28), until their thickness agrees with the dimension you have just calculated.
(i)
Remove the aft datum side-roller (25) from the gage block (53).
(j)
Keep the aft datum side-roller (25) and its shims (28) together.
(k)
Do the procedure again for the forward datum side-roller.
(l)
Remove the clamp assembly (43) and the setting track (44).
(m)
For track 1, prepare the aft datum side-roller (25) for
electrical bonding (Ref. TASK 20-28-00-912-004).
Subtask 27-84-61-420-068
B. Installation of the Datum Side-Rollers
(1)
For tracks 2, 3 and 4 apply a thin layer of COMMON GREASE (Material No. 04-024) to the interface of the aft datum side-rollers (25) and the shims (27).
(2)
Apply a layer of SEALANTS (Material No. 09-018) or SEALANTS (Material No. 09-019) to the shanks of the bolts (26).
(3)
Put the necessary thickness of shims (27) and the aft datum side-roller (25) in position.
(4)
Install the aft datum side-roller (25) and the shims (27) and the bolts (26).
(5)
Safety the bolts (26) with MISCELLANEOUS (Material No. 19-010).
(6)
Do the procedure again for the front datum side-roller (25).
(7)
If removed, install the applicable slat track (2) (Ref. TASK 27-84-61-400-004).
(8)
Apply a layer of STORAGE PRESERVATION (Material No. 15-007) to the bolts (26) and the shims (27).
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