Telma EMR Service
  • Maintenance

The Telma system is a low-maintenance system, but carrying out the recommended checks and inspections is essential to ensure correct operation. The checks and inspections on both the mechanical and electrical systems must be carried out either by approved specialist workshops or by trained technicians.

In order to carry out a thorough inspection, it is important that all parts of the retarder system are clean. To ensure efficient heat dissipation, the rotors should be cleaned of all deposits using a steam jet cleaner. This is particularly important when the retarder is used in dusty or muddy environments and during the winter months when roads have been treated with grit or salt. The stator, and in particular the electrical connections, should only be washed using a low pressure jet to avoid damage to insulation.

Caution ! Retarders must only be washed after sufficient time has elapsed to allow rotors to cool down. Solvents may cause damage to the insulation and must not be used in the cleaner.

  • LLG range of Axial Retarders - AC and AD Retarders

Many AD and AC retarders are now supplied with LLG (Long Life Greasing) and do not require periodic greasing. All LLG retarders are equipped with a new sealing system and are pre-greased with a controlled quantity of grease in production.

The unit is fitted with a greasing point that is sealed with a thermoplastic seal and a label to indicate that the unit must not be greased.Unauthorised destruction of the seal will void the warranty on the unit. In case of an emergency, re-greasing must only be done in consultation with Telma Technical Services.

  • Inspections/Service Schedule

Each different type of operation will demand its particular service schedule. It is recommended that the following inspection schedule is implemented:

  • A system inspection every 5,000km
  • A partial check every 10,000km
  • A complete check every 60,000km

In the event of any problems please consult EMR Technology Ltd

Mechanical inspection      
Operation at
5.000Km
Every
10.000 Km
Every
60.000 Km
AD, CC, CE and M ranges      
No abnormal play in the rotor/stator and measurement of air-gaps
Grease with Supertelmaco 3 (Not LLG - Long Life Greasing retarders)    
No grease leakage  
Tightness of prop-shaft fasteners
Retarder mounting points on side plates and supports
Condition of rubber mounts    
Focal range      
No abnormal play in the rotor/stator and measurement of air-gaps
Tightness of prop-shaft fasteners
Conditions of output shaft seals (gearbox or differential)  
Condition of auxiliary suspension  

Electrical inspection      
Operation at
5.000Km
every
10.000 Km
every
60.000 Km
AD, CC, CE Focal and M ranges      
Condition of wiring and insulation    
Condition of coil connections    
Tightness of connectors and terminals
Condition of retarder earth connection    
Tightness of retarder earth connection

Electrical inspection      
Operation at
5.000Km
every
10.000 Km
every
60.000 Km
Relay box      
Function
Condition of contacts  
Condition of relay box earth connection    
Condition of terminals  
Tightness of  terminals  

 

Electrical inspection      
Operation at
5.000Km
every
10.000 Km
every
60.000 Km
Hand-control lever, foot- control, low-speed cut off switch, automatic control box, dash lamp, etc.      
Function