Gainsborough Trilock Traditional Series User Manual

Step 1.
• Fold template where indicated.
• Position template on door edge at
desired lock / latch height.
• Firmly hold template and mark latch
height and 54mm (2 1/8") lock body
hole centre.
• Measure door thickness and mark
centre on 'latch height' marking.
• Drill 22mm (7/8") latch hole.
Note: it is important to drill this
hole squarely.
• Drill pilot hole for lock body
[suggested size 3mm (1/8")]. Then
enlarge holes to 54mm (2 1/8"),
drilling from both sides of the door.
Step 3.
• Insert the latch through the slot in the carrier until it can go no further.
• Insert the key and turn to retract the latch bolt.
• Pre-drill wood screw holes with suitable drill size.
• Install plastic faceplate shim and faceplate, then screw into position.
Step 2.
• Mark and chisel latch faceplate
to a recess of 3.5mm.
Use latch carrier as a template.
• Insert lock body into 54mm
(2 1/8") hole.
• Insert latch carrier through
22mm (7/8") hole into lock body
assembly and tighten with 2
screws.
Ensure T-shaped hole at rear
of latch carrier is upright!
Please note: Ensure the template
position and orientation is as shown,
incorrect installation voids warranty.
NOTE: • carefully follow these instructions when installing.
• do not overtighten screws.
• use of power driver is not recommended.
• fully remove the Trilock prior to painting the door
to avoid harming the product's finish.
T890PKD02UM1
JUL ‘13
T-Shape hole
Rear view
of latch
Latch
carrier
Double Cylinder
Lock body
DO NOT REMOVE
square spindle
Do not remove
(If aligning template has been removed
turn square spindle away from the latch
bolt housing as far as it can go before
inserting the latch bolt).
Step 4
• Remove perforated cut-out from cardboard
template and place over lock body, making
sure template is square to door edge.
• While holding template firmly in position, mark
remaining 5 holes, as indicated on both sides
of the door (reversing template as required).
• Drill pilot holes from both sides of the door
[suggested size 3mm (1/8")] then enlarge,
again from both sides of the door, to sizes
indicated on template, otherwise correct
functioning may be impeded – refer template.
• In particular, ensure the 54mm
(2 1/8") dia. hole through door face (located
above lock body hole) is drilled only to
correct size, otherwise correct functioning
may be impeded–refer template.
Note: Top 54mm hole must have burrs
removed before installing Trilock as this
will effect snib rotor operation & privacy
function.
1
2
3
4
1. Remove latch bolt assembly from carrier
4. Rotate bolt 180˚
5. Re-attach arm to latch bolt
6. Rotate arm upwards &
fit back into carrier
2. Rotate arm downwards
3. Unclip arm from latch bolt
Arm
Rotate bolt 180˚
Step 3a
Trilock Latch Bolt re-handing.
• Check that tapered side of the latch bolt faces towards the door jamb.
• If not it will be necessary to unclip the rear arm & rotate bolt 180˚.
• This is achieved by following steps:
Please note:
For the single cylinder Trilock version,
the turnbutton stem should be on the
internal side of the door.
If this is not the case, please re-hand
the lock body.
To re-hand: remove the grub screw with
allen key provided, remove and turn the
cylinder to desired direction and re-install.
Re-fasten grub screw with allen key.
Turnbutton
stem
Latch carrier screws
Installation Instructions for Trilock Traditional & Contemporary Series
– Double & Single Cylinder
These instructions apply to both Lever and Knob versions

Gainsborough Trilock Traditional Series Specifications

General

Brand	Gainsborough
Model	Trilock Traditional Series
Category	Door locks
Language	English

Summary

Step 1: Template and Drilling

Fold and Mark Door Template

Position template on door edge, mark latch height, lock body centre, and door thickness for drilling.

Drill Holes for Latch and Lock Body

Drill 22mm (7/8") latch hole squarely and enlarge lock body hole to 54mm (2 1/8") from both sides.

Step 2: Latch and Lock Body Installation

Prepare Latch Faceplate and Install Lock Body

Chisel latch faceplate recess to 3.5mm, then insert lock body and latch carrier, securing with screws.

Ensure T-shaped Hole Orientation

Confirm the T-shaped hole at the rear of the latch carrier is positioned upright during installation.

Single Cylinder Turnbutton Stem

For single cylinder versions, ensure the turnbutton stem is oriented towards the internal side of the door.

Step 3: Latch Bolt and Faceplate

Insert and Retract Latch Bolt

Insert latch, retract bolt with key, pre-drill screw holes, and install plastic faceplate shim and faceplate.

Spindle Alignment Before Latch Insertion

If template was removed, turn square spindle away from latch bolt housing before inserting the latch bolt.

Step 3a: Latch Bolt Re-handing

Re-handing the Latch Bolt

Unclip arm, rotate bolt 180° to face tapered side towards door jamb, and re-attach arm.

Step 4: Marking and Drilling Additional Holes

Mark and Drill Mounting Holes

Use template to mark remaining holes on door, drill pilot holes, then enlarge to correct sizes.

Ensure Correct Hole Size for Snib Rotor

Drill the 54mm (2 1/8") hole for the snib rotor to the correct size, removing burrs for proper function.

Step 5: Lever Re-handing and Operation

Re-handing and Setting Lever Operation

Re-hand levers by pushing main gear away, then rotate lever 180° towards faceplate until it clicks into place.

Step 6: Furniture Plate Installation

Install Traditional Furniture Plate

Install blind screws and brass posts to the external furniture plate without the snib push-button.

Install Contemporary Furniture Plate

Install posts to the external furniture plate without the snib push-button for the Contemporary series.

Step 7: Mounting Furniture Plates

Mount External and Internal Plates

Mount external plate, insert spindle/snib rotor, then mount internal plate and tighten screws securely.

Test Lockset Functions

After completing installation, test all functions of the lockset to ensure smooth operation.

Step 8: Single Cylinder Turnbutton

Install Internal Turnbutton

For single cylinder locks, tighten the grub-screw onto the protruding shaft, ensuring it's on the flat side.

Step 9: Strike Plate Installation

Mark and Drill for Strike Plate

Mark strike plate position on door frame, drill a 25mm (1") hole for the bolt, and chisel recesses.

Install and Adjust Strike Plate

Screw strike plate into position. Adjust anti-rattle tab if the door rattles when latched.

Single Cylinder Lock Body Re-handing

Turnbutton Stem Orientation Check

Verify the turnbutton stem is on the internal side of the door for single cylinder Trilock versions.

Procedure to Re-hand Lock Body

Remove grub screw, turn cylinder to desired direction, re-install, and re-fasten grub screw.