User's Manual

SBS-900 Shore Based Radar Systems
Chapter 9: Planned maintenance
KH-1602-2 issue 1: Standard SBS900 Systems Operator & Maintenance Handbook
Page 99 of 240
3-year maintenance:
Changing gearbox oil (Standard systems only)
Inspection sheet
2 of 2
Health & safety precautions
WARNING: Prior to commencing any maintenance procedure, users must familiarise
themselves with the health & safety warnings noted in the planned maintenance and
health and safety sections of the system handbooks.
AC power: Prior to carrying out any planned maintenance, the system must be fully
isolated and disconnected from all sources of single and 3-phase supply including any
UPS supported supplies.
Caution: When the transceiver, gearbox and antenna have been operating in strong
sunlight or elevated temperatures, the gearbox casing and antenna surface will be
extremely hot.
Gearbox: Under no circumstances should any attempt be made to remove the motor from the
gearbox or the gearbox from the main chassis as this will lead to major loss of oil and damage to
the sealing gaskets.
Gloves: Protective gloves must be worn at all times when the changing oil in the gearbox.
CoSHH: Please refer to the CoSHH (Control of Substances Hazardous to Health) sheet
supplied with the oil for information on the oil including hazard identification, first aid,
fire precautions and disposal recommendations.
Temperature: Due to the pour point of the oil, this task should not be carried out when the ambient
temperature is below -15 deg C.
Oil: When the gearbox has been operating in elevated temperatures, the oil removed
from the gearbox may be hot.
Disposal: Oil removed from the gearbox must be disposed of in accordance with local waste
disposal regulations.
Drain/ filler hole
Remove and carefully retain the 5mm oil
filler grub screw from the gearbox.
Using a syringe or equivalent and a
suitable container which will hold at least
200ml, remove as much oil as is possible
from the gearbox.
Refill
Refill with the specified oil using a suitable
syringe or equivalent.
Refill the oil to the level shown opposite.
Refit and tighten the 5mm grub screw.
Completion of task
When the oil has been replaced and the filler grub screw securely replaced, restore power to the
system and ensure that the gearbox and system are fully operational.