Ada GroundDrill-14 [11/34] Grounddrill 14

MEASUREMENT FOUNDATION

GroundDrill-14

INSTRUMENTS

MAINTENANCE OF AIR FILTER

A dirty air lter will restrict air ow to the carburetor, reducing engine performance. If you operate the engine in very dusty areas, clean

the air lter more often than specied in the maintenance schedule.

a) Unscrew y-nut and remove the air lter cap. Detach the element;

b) Rinse the detail in the non-ammable solvent. Let it dry out.

c) Dip the detail into the clean engine oil to soak. Squeeze excessive oil. Otherwise the engine will smoke for some time when starting it.

d) Put the detail on its place.

Caution: Never use gasoline or other dissolvents to clean air lter. Ignition could result. Operating the engine without an air lter, or with

a damaged air lter, will allow dirt to enter the engine, causing rapid engine wear.

FUEL FILTER CLEANING

Caution: Gasoline and its vapors are extremely ammable and explosive. Fire or explosion can cause severe burns or death. Don’t smoke

on the worksite. Keep gasoline away from sparks, open ames, pilot lights, heat, and other ignition sources.

1. Remove fuel lter and fuel line.

2. Clean fuel lter (remove dirt from the grid of the lter and check the grid for damages).

SPARK PLUG SERVICE

Recommended spark plugs: F7RTC or other equivalents.

Caution: An incorrect spark plug can cause engine damage. Install spark plug with correct electrode gap. Avoid thing coating on it.

1. Remove the spark plug with a spark plug wrench.

Caution: Mufer is very hot during engine running. Be careful, don’t touch it until it gets cold.

2. Inspect the spark plug.

3. Replace it if the electrodes are worn, or if the insulator is cracked or chipped.