5. Next, adjust Security Guide Bolt for added security.
a. With gate closed, adjust the Security Guide Bolt in or out so the end just starts to hit the
v-groove of the Keyed Guide Bolt Receiver.
6. Remove Mounting Bracket A and insert Set Screw (#24) using the allen wrench into the hole
on the backside. Tighten in order to secure Security Guide Bolt into place. Make sure the flat side
of the Security Guide Bolt thread is in contact with the set screw.
7. Place Mounting Bracket A back onto gate and secure with three ½” Self-Tapping Screws (2
screws through the tabs on the inside edge of gate, 1 through center hole used in previous step).
Close the gate and check to make sure the Security Guide Bolt and v-groove of the Keyed Guide
Bolt Receiver remain aligned.
8. Drill out mounting holes on Mounting Bracket A and Mounting Bracket B.
(See Diagram 3)
a. Using a 5/16” drill bit, drill out mounting holes B & D on both Mounting Brackets A & B.
b. Using a ½” drill bit, drill out mounting hole C on both Mounting Brackets A & B.
9. Once holes are drilled, place Latch Assembly (#6) onto Mounting Bracket A, then slide Lock
Hood (#7) over top and secure with two ¾” Large Phillips Screws (#19).
Note:
To change latch direction, remove face plate. Pull & twist latch head so the rounded
edge faces Mounting Bracket B when installed. Re-secure face plate on latch.
10. Install Combination Lock
a. Change the combination of your lock if you wish to change it from the code given. Please
refer to the how to change code instructions at the end of the instruction document.
b. Cut the Spindle (#8) to its correct length by measuring the thickness of your gate post.
Use Chart 1
to determine appropriate spindle length.
c. Double check spindle length – place Inside Lock Body (#22) to inside Mounting Bracket B.
Place Spindle through Latch Assembly and all the way into the Inside Lock Body. Measure the
distance the Spindle sticks out from the Latch Assembly to make sure you have 3/8” – 5/8”
showing.
Note:
If your spindle is too short, your lock may not open. If your spindle is too long,
your lock may bind and stay unlocked causing the lock to not clear when opened.
d. Insert Support Pin (#13) into Outside Lock Body (#21). See Diagram 3 to determine gate
handing. For right handed gates, insert support pin in the left hole. For left handed gates,
insert into the right hole
(See Diagram 4).
e. Screw the proper length Hex Bolts (#14) into the Outside Lock Body and place the Rubber
Trim Plate (#20) on the inside of the Outside Lock Body.
f. With the spindle in place, hold the Outside Lock Body to the Latch Assembly.
g. Place Rubber Trim Plate onto Inside Lock Body and hold into place on Mounting Bracket B.
Secure Inside Lock Body to Outside Lock Body through the gate with two M4 Screws (#15).
h. Install lever handles onto both lock bodies using the two Set Screws. Handles should point
towards hinges.
11. Your lock should now work. Test your lock by pressing the “C” button followed by your
combination. Your lock should now open and retract the latch. Be sure to check both sides to
make sure your lock is working properly.
12. You are now ready to mount the strike assembly.
a. Slide the Strike Assembly A (#9) onto the top channel of Mounting Bracket C.
b. Use the Spacers (#11) and Strike Assembly B (#10) with the Strike Plate (#12) to determine
the minimum gap between your gate and fence post. The recommended distance for your
gap is 1/8”.
c. Place Spacers and Strike Assembly B with the Strike Plate into place and secure them with
two Flat Head M4 Screws (#23).
13. Test to make sure all lock functions work properly.
a. If the lock doesn’t work properly, refer to Steps 1 through 12.
b. If the lock works properly, advance to the final step.
14. Secure the Keyed Guide Bolt Receiver and the Strike Assembly A to the fence post.
a. With the two 1 ½” Self-Tapping Screws (#17), secure the Keyed Guide Bolt Receiver using
the slotted holes.
b. With the two 2 ½” Self-Tapping Screws (#18), secure the Latch Strike Assembly using the
slotted holes.
15. Your lock is now installed and ready to use. See next page for installed photo of the SUMO.
VISIT WWW.LOCKEYUSA.COM/SUMO FOR INSTALLATION VIDEOS, PRODUCT FEATURES, DIMENSIONS & SPECIFICATIONS.
If you have questions, please contact LockeyUSA Technical Support at
888.395.0163
or
For added security on the
SUMO
, M4 Tamper Proof Screws are available
for purchase through any authorized LockeyUSA distributor or on
www.LockeyParts.com.
www.LockeyUSA.com/SUMO
Diagram 4
Gate Post
Thickness
Spindle
Length
(Single
Combination)
Spindle
Length
(Double
Combination)
1
4.5
4
1.5
5
4.5
2
5.5
5
2.5
6
5.5
3
6.5
6
3.5
7
6.5
4
7.5
7
4.5
8
7.5
5
8.5
8
For Single Combination locks:
Add 3.5” to gate thickness for spindle length
For Double Combination (DC) locks:
Add 3” to gate thickness for spindle length
Chart 1
FOR INSTALLATION VIDEOS, PRODUCT FEATURES,
DIMENSIONS & SPECIFICATIONS & MORE!
(in inches)
Diagram 3
Mounting
Bracket A
Mounting
Bracket B
5
/
16
”
5
/
16
”
5
/
16
”
5
/
16
”
1
/
2
”
1
/
2
”
