27-41-81
ALL ú ú 02 Page 416 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500MAINTENANCE MANUAL
STABILIZER BALL NUT AND JACKSCREW GEARBOX - INSPECTION/CHECK
____________________________________________________________
1. General_______
A. This subject has one task. The task is an inspection of the upper and lower gimbal. The procedure has these parts:
(1)
The removal of the stabilizer trim jackscrew gearbox
(2)
An inspection of the upper and lower gimbals
(3)
The installation of the stabilizer trim jackscrew gearbox.
TASK 27-41-81-206-001
2. Upper and Lower Gimbal Wear Limits Inspection (Fig. 601)_____________________________________________
A. Standard Tools and Equipment
(1)
Micrometer - 0-1, 1-2 inches
(2)
Vernier Caliper
B.
References
(1)
AMM 27-41-81/401, Stabilizer Ball Nut and Jackscrew Gearbox
C.
Access
(1)
Location Zone
702 Tail Compartment Access Door
704 Tail Cone
(2)
Access Panels
3701 Stabilizer Trim Access Door
3801 Tail Cone Access Door, LH
3802 Tail Cone Access Door, RH
D.
Procedure
S 026-002
(1)
Do this task: "Stabilizer Ball Nut and Jackscrew Gearbox Removal" (AMM 27-41-81/401).
S 216-004
(2)
Examine the parts for worn areas:
(a)
Use a micrometer or a vernier caliper to measure the parts for the worn areas.
(b)
Compare the dimensions you measured with the permitted dimensions shown in Fig. 601.
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27-41-81
ALL ú ú 01 Page 601 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A
737-300/400/500
MAINTENANCE MANUAL
SEE A JACKSCREW
BALL NUT
TRIM ACTUATOR STABILIZER PRIMARY SEE B
GEARBOX JACKSCREW GIMBAL UPEPER
LOWER GIMBAL FWD
A
Gimbal Wear Limits Figure 601 (Sheet 1)
L86888
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27-41-81
ALL ú ú 03 Page 602 ú Mar 12/01
BOEING PROPRIETARY - Copyright (C) - Unpublished Work - See title page for details.
A 737-300/400/500MAINTENANCE MANUAL
BUSHING/PIN
INDEX NO. PART NAME DIM. DESIGN LIMITS WEAR LIMITS REPLACE WORN PART REPAIR WORN PART REPAIR INSTR
DIAMETER DIM. WEAR MITTED PER- DIA MAX CLEAR-ANCE
MIN MAX
1 YOKE ID 1.000 1.001 1.002 0.005 X 1
BUSHING OD 0.998 0.999 0.996 X
2 FITTING ID 1.000 1.001 1.002 0.005 X 1
PIN OD 0.998 0.999 0.997 X 1
3 BUSHING ID 1.000 1.001 1.003 0.005 X
PIN OD 0.998 0.999 0.997 X 1
YOU CAN REPAIR A WORN PART. REFER TO THE OVERHAUL MANUAL FOR REPAIR INFORMATION.
Gimbal Wear Limits Figure 601 (Sheet 2)
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