Operation 3.2. Description of the individual elements 3.2.10. Slow-blowing fuses If the power supply fails, a main fuse or relay might be blown. Check the electrical system and replace defect fuses or relays. When the driver's cab is tipped up, the box can be found in the engine compartment on the right. 1 Relay, starter motor 92 Ω 2 Fuse, battery 100 A 3 Relay, air preheater for engine 12 Ω 4 Fuse, air preheater for engine 250 A 5 Relay, battery 32 Ω WA100M-5 – VEAM280201 3-31