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-900ER, -BBJ)
STD-1107 Gauge - Feeler, 0.0 - 0.5 Inch, Readable to 1/1000th
STD-1238 Indicator - Dial
STD-1278 Block - Loading, 1/8 Inch Thick, 3 Inch by 3 Inch Wood or Fiberglass
Block with Pad to Prevent Damage to the Skin.
STD-1279 Mount - Device, Mounting, Holds the Dial Indicator
STD-1303 Caliper - Dial
D. Location Zones
Zone Area
211 Flight Compartment - Left
212 Flight Compartment - Right
311 Area Aft of Pressure Bulkhead - Left
312 Area Aft of Pressure Bulkhead - Right
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Page 606
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GUN 156, 201-204, 206 PRE SB 737-55A1080 (Continued)
(Continued)
Zone Area
334 Left Horizontal Stabilizer - Elevator
344 Right Horizontal Stabilizer - Elevator
E. Access Panels
Number Name/Location
311BL Stabilizer Trim Access Door
F. Prepare for the Check
SUBTASK 27-31-32-860-001
WARNING: MAKE SURE THAT PERSONS AND EQUIPMENT ARE CLEAR OF ALL CONTROL
SURFACES BEFORE YOU SUPPLY HYDRAULIC POWER. AILERONS, RUDDERS,
ELEVATORS, FLAPS, SPOILERS, SLATS, AND THRUST REVERSERS CAN MOVE
QUICKLY WHEN YOU SUPPLY HYDRAULIC POWER. THIS CAN CAUSE INJURY TO
PERSONS AND DAMAGE TO EQUIPMENT.
(1) Pressurize the elevator hydraulic systems A and B. To pressurize them, do this task: Elevator
Hydraulic System A and B - Pressurization, TASK 27-31-00-800-801.
SUBTASK 27-31-32-860-002
(2) Make sure the flaps are in the full up position, do this task: Trailing Edge Flap System
Operation With Primary Control, TASK 27-51-00-860-801.
SUBTASK 27-31-32-010-001
(3) Open this access panel:
Number Name/Location
311BL Stabilizer Trim Access Door
SUBTASK 27-31-32-860-003
(4) Use the bar, SPL-1677 to set the "B" dimension at 39.89 +/- 0.01 inches (1013.2 +/- 0.3
millimeters) or 4 units of trim (Figure 602).
SUBTASK 27-31-32-860-004
(5) Operate the elevator in the full travel 6 times.
SUBTASK 27-31-32-860-005
(6) Make sure the control column is in the neutral position.
G. Do a Check of the Elevator Tab Trailing Edge Freeplay
SUBTASK 27-31-32-220-001
(1) Do a check of the elevator tab trailing edge freeplay (Figure 602):
(a) Remove pressure from the elevator hydraulic systems A and B. To remove the pressure,
do this task: Remove Pressure from the Elevator Hydraulic Systems A and B,
TASK 27-31-00-800-802.
(b) Make sure the stabilizer is set at 4.0 +/- 0.5 units of trim.
737-600/700/800/900
AIRCRAFT MAINTENANCE MANUAL
EFFECTIVITY
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Page 607
Jun 10/2007
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GUN 156, 201-204, 206 PRE SB 737-55A1080 (Continued)
CAUTION: BE VERY CAREFUL WHEN YOU INSTALL THE WOODEN BLOCK. IF YOU USE
MORE THAN HAND PRESSURE TO INSTALL THE WOODEN BLOCK, YOU CAN
CAUSE DAMAGE TO THE ELEVATOR OR TAIL CONE.
(c) Keep the elevator from moving by installing a wooden block between the inboard edge of
the elevator and the tail cone (Figure 602).
NOTE: Be sure to cover the wooden block with duct tape or equivalent so that you do not
damage the paint of the elevator or tail cone.
CAUTION: BE VERY CAREFUL WHEN YOU INSTALL THE MOUNTING PLATE. THE ELEVATOR
IS MADE OF COMPOSITE MATERIALS. THE MOUNTING PLATE CAN CAUSE
DAMAGE TO THE ELEVATOR IF YOU ARE NOT CAREFUL. DO NOT MOVE THE
CONTROL COLUMNS. ANY MOVEMENT OF THE CONTROL COLUMNS CAN
CAUSE DAMAGE TO THE ELEVATOR OR INJURY TO PERSONS WORKING NEAR
THE ELEVATOR.
(d) Attach a mounting plate to the elevator trailing edge forward of hinge 1 of the elevator tab.
1) Put the dial indicator, STD-1238 plunger on the top of the elevator tab, approximately 0.1
inch (3 millimeters) forward of the trailing edge of the elevator tab and within 0.5 inch
(13 mm) of the inboard side of the hinge 1 centerline.
2) Adjust the dial indicator, STD-1238 to zero.
(e) Use a block, STD-1278 and force gauge, COM-1557 to push down on the top of the elevator
tab with a force of 5.0 +/- 0.2 pounds (22 +/- 1 newtons).
NOTE: Apply the force on the elevator tab at the trailing edge, as close as possible to the
tab hinge 1 centerline (Figure 602).
1) Make a record of the travel shown on the dial indicator, STD-1238.
2) Slowly remove the force.
(f) Push up on the bottom surface of the elevator tab with a force of 5.0 +/- 0.2 pounds (22 +/-
1 newtons), directly below the force applied before.
NOTE: Do not adjust the dial indicator.
1) Make a record of the travel shown on the dial indicator, STD-1238.
　
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