USM HIGHTOWER User manual

HIGHTOWER - MEGATOWER
SHEAR BLOCK TOWER
USER MANUAL
Deployment & Maintenance
Patent #8094520
TM
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DISENGAGE SHEAR BLOCK - Using the Speed-Wrench loosen
the lead-screw on top of the Shear Block Tower. Ensure the Shear
Block is fully disengaged from the Notch Rings.
REMOVE TOWER FROM MOUNT - Using a 5/16” Allen Wrench, remove
two ½-13 x 5.0” flat-head bolts. Lift the Shear Block Tower from the USM.
REMOVE SHEAR BLOCK - Using a 3/16” Allen Wrench, remove
two ¼-20 x 1.375” socket-head screws.
WIPE CLEAN - Once the Shear Block has been removed, use a rag
or paper towel to wipe away any dirt, grease or salt residue etc.
SPEED
WRENCH
TM
5/16”
3/16”

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56
78
LUBRICATE MOVING PARTS - Using a grease gun inject grease
into the top of the Shear Block Tower through the zerk fitting.
ROTATE WHILE GREASING - Using Speed-Wrench rotate Lead-Screw
while injecting grease. Continue injecting until fresh grease is expelled.
REMOVE EXCESS GREASE - Wipe away excess grease. INSTALL SHEAR BLOCK - Using a 3/16” Allen Wrench, install two
¼-20 x 1.375” socket-head screws.
SPEED
WRENCH
3/16”
10 FT-LBS
TM

REMOVE BLOCK FRAGMENTS - Ensure there are no remaining
fragments of the broken Shear Block between the Notch-Rings. Do
not put hands into the space between the Notch-Rings.
KEEP FINGERS AWAY.
910
11 12
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Page
NEVER USE HANDS - Use a tool to remove broken fragments
such as a pen or other non metallic tool.
USE TOOL FOR REMOVAL - Use a tool to remove broken
fragments such as a pen or other non metallic tool.
TM

ALIGN NOTCH RINGS - Align Notch-Rings with the notch in the
Top-Block using X-Pole Wrench.
ALIGNED
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MISALIGNED
13 14
15 16
NOTCHES MISALIGNED - Simply Rotate the X-Pole to align
notches.
ROTATE X-POLE - Using the X-Pole Wrench as pictured above,
rotate the X-Pole to align notches as in cell 16.
NOTCHES ALIGNED - With the notches aligned you may proceed
with reinstalling the Shear Block Tower.
TM

5
Paget
READY FOR SURVEY - The USM is ready to deploy and begin
survey operations.
ENGAGE SHEAR BLOCK - Using the Speed Wrench, engage Shear
Block. Tighten until you feel a ‘hard stop’. Do Not Over Tighten.
REINSTALL SHEAR BLOCK TOWER - Using a 5/16” Allen Wrench,
install two ½-13 x 5” flat-head bolts.Torque screws to 35 FT-LBS. 17 18
19 20
GENERAL MAINTENANCE - Ensure all stainless hardware always
coated with a marine grade anti-seize product. Always wash and dry the
USM after each use. After the unit is dry apply a silicone spray or
lubricant that does not make plastic swell.
AVAILABLE FROM USM FOR MOUNT SERVICE AND MAINTENANCE
● AQUA-SHIELD GREASE
● T-9 BOESHIELD
● CMD EXTREME PRESSURE #3 GREASE
● BOLT AND SPARES KITS
5/16”
35 FT-LBS
SPEED
WRENCH
TM