Cleaning the engine air shut-off valve
1.
The engine air intake shut-off valve does not close fully.
The machine does not shut down? Destruction of the engine and explosion and/or fire are pos‐
sible.
➤ Do not grease the valve, as this may cause a build up of dust and valve sticking.
2.
Opened engine air inlet manifold
Dirt can enter the engine and cause damage (turbocharger).
➤ Ensure utmost cleanliness when working at the intake system!
➤ Use tape or a clean, lint-free cloth to close the opening of the engine air intake elbow.
3. Loosen the hose clamp on the engine side of the engine air shut-off valve and remove the air
intake hose.
4. Remove the hose clamp at the air filter side of the engine air shut-off valve and remove the air
intake hose.
If necessary, remove the air filter housing.
5. Check if the interior of the shut-off valve is clean.
Engine shut-off valve is clogged: Blow out with compressed air.
If necessary, clean the valve with cleaning fluid or spirit and allow to dry.
If dirt cannot be removed: Contact specialist workshop or KAESER SERVICE.
Checking the engine air intake shut-off valve for correct function and movement
1. Check the valve for signs of excessive wear.
2. Check that the valve plate closes fully and easily.
Result When severe wear or function problems are apparent: Have the engine air intake valve replaced.
1. Reposition the air intake hoses and tighten the clamps.
If removed, re-install the air filter housing (see Fig. 80; Detail
a
)
2. Close the doors.
3. Start the machine and switch to LOAD operation.
The engine stops in LOAD operation: Have the engine air intake valve checked by a specialist
workshop or an authorized KAESER SERVICE representative.
Checking manual operation of the engine air intake valve
Fig. 81 Checking manual operation of the engine air intake valve
1
Handle
10 Maintenance
10.9 Maintenance for Optional Items
162
Operator Manual Screw Compressor
M114 SIGMA CONTROL SMART
No.: 901765 05 USE
