(a)
Before the installation, make sure that the P/N of the O-ring is correct:
-O-ring: NAS1612-XX or NAS1602-XX
(b)
Make sure that the parts you install are clean and not damaged.
(c)
Before you install the O-ring, make sure that the union/plug is not damaged:
-discard the union/plug when it has scratches or when the groove of the O-ring is damaged.
(2)
Installation on unions/plugs
(a)
Get the O-ring installation tool applicable to the diameter of the union/plug
(b)
Install the union/plug on the tool
-move the union/plug on the sleeve (1).
(c)
Lubrication CAUTION : ONLY USE HYDRAULIC FLUID MATERIAL N. 02-003 TO
_______
(d)
move the O-ring on the sleeve (1) until it touches the conical end of the sleeve.
(e)
Move the pusher (2) on the sleeve (1) until it touches the O-ring.
(f)
Push the pusher until the O-ring is in the correct position in the groove of the union/plug.
(g)
Make sure that the O-ring is in the correct position without any torsion or damage.
Installation of the O-ring Seal
Figure 201/TASK 20-29-00-991-001
1EFF : ALL 1 20-29-00 Page 203
1 1 Feb 01/98
1 1
1CES 1
LUBRICATE THE O-RING AND THE THREAD (O-RING SIDE) ON
PLUG-IN FITTINGS. OTHER LUBRICANTS CAN CAUSE DAMAGE TO
THE O-RING.
1_ Put the O-ring fully into into HYDRAULIC FLUIDS (Material No.
02-003) for a minimum of a quarter of an hour before you
install it on the union/plug.
2_ Lightly apply HYDRAULIC FLUIDS (Material No. 02-003) to the
conical end of the sleeve (1).
(h) Remove the tool. Subtask 20-29-00-911-055
D. Installation of the Union/Plug on the Equipment
(1)
Lightly apply HYDRAULIC FLUIDS (Material No. 02-003) on the threaded part of the union/plug.
(2)
Install the union/plug on the equipment and tighten manually. NOTE : The union/plug must turn freely in the equipment or manifold
____ port.
(3)
TORQUE the union/plug to the applicable value (Ref. TASK 20-21-12-911-001).
LIST OF MATERIALS REQUIRED FOR AIRCRAFT SERVICE AND MAINTENANCE_______________________________________________________________
DESCRIPTION AND OPERATION_________________________
1. General_______
WARNING: BEFORE YOU USE A MATERIAL REFERRED TO IN THIS PUBLICATION, YOU MUST
KNOW ALL OF THE APPLICABLE PRECAUTIONS.
THESE PRECAUTIONS TELL YOU HOW TO:
- USE THE MATERIAL SAFELY
- KEEP THE MATERIAL SAFELY
- DISCARD THE MATERIAL SAFELY.
READ THE SAFETY DATA SHEETS FROM THE MANUFACTURER OR THE SUPPLIER OF
THE MATERIAL TO LEARN THE RECOMMENDED PRECAUTIONS.
WARNING: CONSUMABLE MATERIALS ARE USED IN ALL AREAS OF THE AIRCRAFT.
SOME OF THESE MATERIALS ARE HAZARDOUS MATERIALS.
BE CAREFUL WHEN YOU DO WORK WITH HAZARDOUS MATERIALS.
OBEY THE APPLICABLE PROCEDURES, PRECAUTIONS, RECOMMENDATIONS, WARNINGS
AND CAUTIONS:
- WHEN YOU USE OR DO WORK WITH THESE MATERIALS,
- FOR THE STORAGE OF THESE MATERIALS,
- WHEN YOU DISCARD THESE MATERIALS.
HAZARDOUS MATERIALS CAN CAUSE INJURY OR ILLNESS IF YOU DO NOT USE THEM
CORRECTLY.
R
R CAUTION: WHEN YOU DO A MAINTENANCE TASK THAT USES COMMON GREASE, OBEY THESE
R PRECAUTIONS:
R - IF POSSIBLE, USE ONLY GREASES OF THE SAME SPECIFICATION TYPE (IT IS
R PERMITTED TO USE DIFFERENT BRANDS IF THE SPECIFICATION TYPE IS THE
R SAME). WE SPECIALLY RECOMMEND THAT YOU DO NOT MIX GREASES THAT HAVE
R CLAY THICKENERS WITH GREASES THAT HAVE LITHIUM THICKENERS. SUCH A
R MIXTURE CAN CHANGE THE LUBRICATION PROPERTIES OF THE GREASE.
R - IF YOU CANNOT OBEY THESE PRECAUTIONS AND YOU USE GREASES OF
R DIFFERENT TYPES (SPECIALLY THOSE WITH CLAY THICKENERS AND LITHIUM
R THICKENERS), DECREASE THE SERVICING INTERVALS (BY HALF, FOR EXAMPLE)
R SPECIFIED IN THE MAINTENANCE PLANNING DOCUMENT. DO THIS FOR
R APPROXIMATELY THREE OR FOUR SERVICES (REFER TO YOUR IN-SERVICE DATA
R TO FIND THE NUMBER OF SERVICES BEST ADAPTED TO YOUR AIRCRAFT).
This topic groups all materials used for aircraft operation, servicing,
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