• 21.15 Service brake/vacuum system159
• 21.16 Parking brake15
• 21.17 Trailer brake3
• 21.20 Engine brake2
• 21.21 Retarder12
• 21.22 Eddy current brake2
• 21.23 Regenerative braking system2
• 21.30 Frequent-stop brake3
• 21.35 Compressed-air system16