Ammann AVH 100-20 User Manual (English)

Questions and Answers:

S
Shannon ThompsonAug 9, 2025
Why does my Ammann AVH 100-20 Power Tool engine not start?
- N
  Nathan MoralesAug 9, 2025
  The engine may fail to start due to several reasons: * The speed control lever might be in the «STOP» position. If so, set the lever to the «START» position. * There might be no fuel reaching the injection pump or the tank might be empty. In both cases, add fuel. * The fuel filter could be blocked, requiring a replacement. * There may be loss of oil pressure, in this case check the engine oil level. * The feed pump may be defective and require checking.
M
milesoscarAug 17, 2025
What to do if my Ammann Power Tool engine stops by itself?
- J
  Jodi SmithAug 17, 2025
  If your engine stops during regular operation, it could be due to: * Interrupted fuel supply or an empty tank, in which case you should add fuel. * A blocked fuel filter, which means you need to renew the fuel filter. * Loss of oil pressure, so you should check the engine oil level.
K
Kathy BlackAug 25, 2025
Why Ammann AVH 100-20 engine runs, but the machine does not move forward?
- P
  Pamela LloydAug 25, 2025
  If the engine runs but the machine isn't moving forward, the possible causes are: * Worn centrifugal clutch lining, which means you need to replace linings and springs. * Too much oil in exciter. In this case, check exciter oil level.
K
Kara McclainSep 1, 2025
How to troubleshoot reduced engine performance in my Ammann Power Tool?
- M
  Michael LeachSep 1, 2025
  Reduced engine performance can stem from several issues: * Obstructed fuel supply or an empty tank, so you should add fuel. * A blocked fuel filter, meaning you should renew the fuel filter. * Inadequate tank venting, ensure that the tank is adequately vented. * Leaks at pipe unions, so check the threaded pipe unions. * A blocked air cleaner, remove dirt from air cleaner. * Incorrect valve clearance, adjust the valve clearance. * Too much oil in the engine, drain off engine oil down to the upper mark on the dipstick. * Too much oil in exciter, check exciter oil level.