Maintenance; Basic Maintenance Programme - Safegate Group SL-HF-I Manual

Airfield Lighting
Manual
Ref: SL-HF-I; SL-HT-I
3.

MAINTENANCE

In this section you can find a description of the different steps for the maintenance of
the fitting.
Before you start, make sure you have read and understand §1.1 Safety Instructions.
Find out the location of the light unit that needs maintenance. If the purpose is to
replace an existing light unit with new one, make sure that corresponding unit is
available.
WARNING! WHEN A FITTING HAS BEEN REMOVED FROM ITS BASE, THE
BASE MUST BE EITHER FITTED WITH A COVER OR A RESERVE FITTING PUT
IN ITS PLACE.
IT IS RECOMMENDED THAT ONLY AUTORIZED PERSONNEL DISASSEMBLE
FITTINGS WITH PRIOR AGREEMENT FROM SAFEGATE.
The following tools and accessories are required for maintenance actions:

One angled socket spanner of 16 mm

One Torque limiting spanner with 16 mm and 5 mm adaptors

One Allen key of 5 mm

Two large flat blade screwdrivers (for removal of the fitting from its base)

Silicone grease (for housing screws)
 One angled socket spanner of 12 mm (for the valve)

Sealing compound (for the valve)

One brush or cloth (general cleaning)

A compressor (or a manual car tyre pump) equipped with a manometer (for
the water tightness test)
3.1

BASIC MAINTENANCE PROGRAMME

There are recommended maintenance tasks to ensure that the equipment is in correct
operating condition.
Maintenance tasks
Weekly
Monthly
Yearly
Note: The basic maintenance program is intended for fittings at a standard Heliport
site in normal operating conditions.
It is recommended to verify that the fitting is water tight, after disassembly/ assembly,
before installation in the field (see § 3.2.1 Disassembling/ Assembling the Fitting).
A daily function check is referred to in the document:
ICAO, Airport Services Manual Part 9, Airport Maintenance Practice and FAA AC
150/5340-26A, Maintenance of airport visual aids facilities.

Visual inspection of the fitting.

Removal of dust from external surfaces of the fitting.

Check of the optical window, check for mechanical damage.

Check for proper fixing of the fitting in its base.

Detailed inspection of the fitting.

Check of the body resistance, check for mechanical damage
(for example cracks around prism windows).

Clean of the optical windows.
Page 9 of 16
Safegate Group
Date: September 2014
Version: 1.3