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If you have any questions regarding this product and its safe use, or if there are any missing or damaged parts, DO NOT return Boat Lift Boss

 to the retailer. 

Call the Boat Lift Boss

 Service Department at: 651-357-1874 or e-mail - [email protected]

After all connections use 
a 10 mm wrench to adjust 
and straighten if necessary.

Step 1 - Lift Cradle Positioning

Lower the boat lift cradle to its lowest position until there is no 
tension on the cable. Secure boat with rope so it doesn’t float away.

Step 2 -  Removing the Wheel & Braking System

To remove the wheel from the boat lift, first remove the fastener 
from the center of the wheel. Turn the wheel counterclockwise until 
it unthreads from the winch box.
Remove 7/8” washer from winch input shaft and save for future use 
if a hand wheel is required.
Unbolt and remove the ratchet pawl (This makes the clicking sound 
when raising the lift). 
This is the current braking system on the winch box and MUST 
be removed or damage may occur. Boat Lift Boss

 has a built-in 

braking system.

Step 3 - Installing Boat Lift Boss

 

Slide the aluminum space on to the winch box input shaft.

Apply Loctite

®

 to the threads on the winch box input shaft. Thread 

the tapered drive shaft to lift and hand tighten.
Push the Boat Lift Boss

 drive on to the tapered shaft.

Secure by using the 3/8” x 2-3/4” bolt (0.95cm x 6.98cm), lock 
washer and 3/8” x 1-1/4” (0.95cm x 3.17cm) diameter thick fender 
washer.
Hand tighten with 3/8” (0.95cm) ratchet and 9/16” (1.42cm) socket to 
approximately 20 foot lbs of torque (2.76 kgF)
(Do not over tighten.)
Reinstall the black rubber plug.

Step 4 - Final Connections & Adjustments

Install torque arm to the Boat Lift Boss™ bracket and lower right 
corner of the lift box and to the tear drop bracket as shown.
Note: On some models, a 3/8” (0.95cm) hole may need to be drilled 
to fasten the bottom of the arm to the bottom right of the winch box.
Check fasteners and make final adjustments.

Attention:  

At this time it is important to check that lifting can only be done 
when the gear head goes in a clockwise direction. Attempting to 
lift in a counter-clockwise direction may unscrew the unit from the 
winch box, causing serious damage or injury. If you have questions 
or do not understand this procedure  -STOP-  and call the Boat 
Lift Boss

 Service Department at 651-357-1862 between 8:00 A.M. 

and 5:00 P.M. Central Standard Time, Monday - Friday or e-mail 
[email protected]

Boat Lift Boss

™ 

Installation

Summary of Contents for Boat Lift Boss

Page 1: ...electrical circuit that has ground fault interrupter protection The interrupter and its supply circuit MUST be installed to all applicable electrical codes Any necessary electrical work should be done by a licensed electrician Boat Lift Boss should only be connected to power source by a marine rated 3 prong grounded cord Cord should be inspected regularly to insure good condition Improper wiring o...

Page 2: ... 44cm x 0 95cm Bolt 8 1 1 1 4 x 3 8 3 17cm x 0 95cm Bolt 9 2 3 8 0 95cm Lock Nuts 10 4 3 8 0 95cm Flat Washers 11 1 5 8 x 3 1 58cm x 7 62cm Hardened Tap Bolt 18 Pitch Puller 12 3 1 12 11 10 8 9 4 7 6 5 2 Loctite Remove Location of lower torque arm Note Nut goes inside the box Rubber Plug Congratulations You re minutes away from the convenient and quiet operation of Boat Lift Boss Important The Pul...

Page 3: ...put shaft Apply Loctite to the threads on the winch box input shaft Thread the tapered drive shaft to lift and hand tighten Push the Boat Lift Boss drive on to the tapered shaft Secure by using the 3 8 x 2 3 4 bolt 0 95cm x 6 98cm lock washer and 3 8 x 1 1 4 0 95cm x 3 17cm diameter thick fender washer Hand tighten with 3 8 0 95cm ratchet and 9 16 1 42cm socket to approximately 20 foot lbs of torq...

Page 4: ...shaft Counter clockwise lifts boat and clockwise lowers boat Removal 1 Completely lower the lift rack so there is no tension on the winch cable 2 To remove Boat Lift Boss for service use the puller supplied with the hardware kit 3 Remove the rubber plug and 3 8 mounting bolt and washer 4 Use a ratchet with a 15 16 socket to install puller bolt into the threads located behind the black plug 5 Hand ...

Page 5: ...xpedited freight charges to handle warranty claims are the responsibility of the consumer Extreme Max is not responsible for any 3rd party labor charges that may be incurred in removing transporting or installing the lift Extreme Max disclaims any other express warranties all UCC implied warranties and warranties of merchantability and fitness for purpose To expedite warranty service please comple...

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