Assa Abloy Norton Unitrol UNI J8300 Installation Instructions page 3

Set average-power of multi-size closer. (Series UNI

J8301, UNI J8501 ONLY) See Power Adjust chart on
Page 1.
See Figure 2 or 3 and select template dimensions.

Note: Separate template required for other
applications. Figure 2: 1-3/4" (44mm) thick door on 4-
1/2" (114mm) wide hinges or 3/4" (19mm) offset-
pivots. Figure 3: 1-3/4" (44mm) thick door on center-
pivots. Frame reveals and door opening angles as
charted; shock absorber will permit five (5) degrees of
door travel beyond hold-open position.
Locate holes on frame face, stop-side. Four (4) for

closer (or drop plate).
 Locate holes on door. Two (2) for arm-foot.
Prepare door and frame for fasteners. See chart

"Preparation for Fasteners" (Figure 4). Note: It is
recommended to use sex-nuts to fasten arm foot to the
door and to fasten the closer body to a flush transom.
80-9380-2214-020 Rev 3 (05-24)
Installation Sequence
Preparation for Fasteners
Fasteners
Self-Drilling Screw
Standard
1/4" - 20 machine screw
Sleeve nuts and bolts
Optional
Through-bolts and
grommet-nuts
Top-Jamb Installation
Left Hand Door
Preload
Pinion Flat
Approved 2024-05-14
Mount drop plate, (if used) and closer. Closer power

adjustment shaft toward lock edge.
 Disassemble rod-unit from arm-assembly and install
on door. Rod under shock-absorber and closest
possible to lock edge (See Figures 1 and 5).
Mount main arm onto closer pinion shaft, aligning

proper arm mark with pinion flat. Secure with main
arm screw. Arm Mark "S" (See Figure 5).
Insert connecting rod into slide unit and preload arm.

Secure with rod screws. Adjust rod to perpendicular
with door. See Figure 5.
Adjust closer and install cover. See "Unit Adjustment"

on back page.
Figure 4
Door or Frame
Drill-Sizes
Aluminum
No drill required
or Metal
Wood
3/16" (4.30 mm)
Drill: #7 (0.201" dia.)
Metal
Tap: 1/4" - 20
9/32" (7 mm) through;
Hollow
3/8" (9.5 mm) door face
Metal
opposite to closer
Aluminum
3/8" (9.5 mm) through
or Wood
9/32" (7 mm);
All 3/8" (9.5 mm) dia. x
3/8" (9.5 mm) deep on
door opposite to closer
Right Hand Door
Preload
Pinion Flat
Figure 5
Page 3