Question

Jerky movement of the carriage is due to

1. Excess tension of main spring
2. Damage of dogs in the dog block
3. Damage of the tooth of escapement /pinion wheel
4. Accumulation of dirt on the carriage rack

• A. i, ii
• B. iii only
• C. i, ii, iii
• D. i, iv

Answer 1

Answer:

C. i, ii, iii

Jerky movement of the carriage is due to the following reasons

• Excess tension of main spring
• Damage of dogs in the dog block
• Damage of the tooth of escapement /pinion wheel