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Upgrade Instructions

e.PRIMUS

®

 Le-Series 

Heavy Duty Mortise Lock

Tools Required

For Lock Installation

Phillips screwdriver 
Spanner wrench
Tamper resistant screw tool (if required)
ESD wrist strap
Small flat-head screwdriver (optional)

IMPORTANT

: This procedure is to be performed by 

authorized personnel only.

CAUTION: 

After the inside escutcheon screws are removed, 

the escutcheon will become loose. DO NOT allow the 
electronics escutcheon to hang by the Y-cable. Hold the 
escutcheon to ensure the wires are not pulled.

1.

Remove INSIDE LEVER and ESCUTCHEON 
SCREWS.

a.

Using a spanner wrench, loosen the lever bushing 
and remove the lever from the inside escutcheon.

b.

Using a Phillips screwdriver, remove the two (2) 
escutcheon screws. 

2.

Disconnect the Y-CABLE.

Disconnect the motor and target wires from the Y-cable by 
grasping the wire connectors and NOT the actual wires. If 
the wires are not easily separated, use the tip of a small, 
flat-head screwdriver to release the connector snaps. 

3.

Remove the four (4) AA BATTERIES

4.

Remove ELECTRONICS COVER.

a.

Place the tip of a small, flat-head screwdriver into the 
battery cover slot.

b.

Twist the screwdriver to release the side clips.

 

Y-Cable

Remove Inside Trim

1

Electronics Cover

Slot

SCHLAG

E

SCHLAG

E

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