Visible leakage or physical damage may make replacement more suitable than adjustment. Show the condition and model before buying parts. The ordinary service does not rebuild sealed hydraulic mechanisms or promise that a damaged closer can be restored by changing settings.
The supplied template establishes bracket and body positions for the permitted arrangement. Existing holes may not match a new model. Sound ordinary fixing support is required; installation does not include structural reinforcement or modification of a rated opening.
Adjustment options vary by model. A suitable closer can be checked within its permitted range, but stiffness may also relate to hinges, alignment or seals. The enquiry should describe the movement rather than assume turning an adjustment screw is the complete repair.
Install a suitable ordinary supplied surface closer, make permitted adjustments or replace an unsuitable leaking unit within the agreed scope. Scope limits: Ordinary non-rated surface-mounted mechanical units only. No fire, smoke or egress certification, powered systems, structural reinforcement or specialist mechanisms.