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Installation Procedures
4. Recommended Bracing
Installers are responsible to ensure that the mounting structure and
mounting method are adequate for the intended imposed loads, use
and application in accordance with trailer design specifications.
Published ratings are based on physical tests wherein the
mounting plate of the tested landing gear legs was attached to
a rigid fixture using eight (8) Grade 8, 5/8" (16 mm) diameter
bolts and nuts with hardened washers. The lower end of
the upper housing tubes were rigidly braced in a lateral and
longitudinal direction. All fasteners were torqued according to the
manufacturer's recommendations.
The following are the minimum bracing requirements to meet
AAR-931 Side Load Requirements:
H ardware: 5/8" (16 mm) Grade 8 bolts for all brace attachment.
S trut Bracket: "W" Bracket (LG0266), 3/8" ( 9.5 mm)
thick x 2" (51 mm) wide (minimum) or equivalent.
NOTE: DO NOT install strut brackets in the center of the
housing without proper backing and DO NOT
attach the brackets to the housing band (Figure 11).
NOTE: DO NOT allow weld for strut brackets to penetrate
through the housing and make contact with the
retract tube.
Failure to follow the installation instructions
and bracing recommendations in this
manual could create a crush hazard
which, if not avoided, could result in
death, serious injury or property damage.
Failure to install, the landing gear per the
preceding instructions and recommendations
could cause faulty operation which, if not
avoided, could cause property damage and
void the warranty.
S trut Brace: 1-1/2" (38 mm) Schedule 80 pipe or 1.900 outside
diameter x 8 GA. Wall x 50,000 p.s.i. yield or equivalent.
Flatten the pipe on both ends to accommodate fasteners and
attachment to the brackets/trailer.
NOTE: DO NOT completely flatten the end of the pipe.
ONLY flatten the area around the bolt hole.
A completely flat end can buckle.
Use of strut braces that DO NOT meet
these requirements may result in brace
failure which, if not avoided, could result
in death, serious injury or property damage.
The minimum bracing configuration to be used: A-type bracing
laterally, with an additional straight cross member. Longitudinal
bracing should consist of two braces mounted rearward of the
landing gear, one for each leg as illustrated (Figures 9 and 10).
8
XL-LG20004UM-en-US Rev B · 2018-09-17 · Amendments and Errors Reserved · © SAF-HOLLAND, Inc., SAF-HOLLAND, HOLLAND, SAF,
and logos are trademarks of SAF-HOLLAND S.A., SAF-HOLLAND GmbH, and SAF-HOLLAND, Inc.
Figure 9
STRUT BRACES
"W" BRACKETS
LATERAL A-TYPE BRACING
Figure 10
"W" BRACKET
LONGITUDINAL REARWARD BRACING
Figure 11
ACCEPTABLE
6.50" MAXIMUM
( LOWER POSITION
PREFERRED )
STRUT BRACE
6.50" MAXIMUM
(LOWER POSITION
PREFERRED)
NOT ACCEPTABLE
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