Troubleshooting
Problem
Possible Cause
Corrective Action
1. The battery is discharged.
1. Charge the battery or replace it.
2. The electrical connections are corroded
or loose.
2. Check the electrical connections for
good contact.
The starter does not crank (model 22971
only).
3. The relay or switch is damaged.
3. Contact your Authorized Service
Dealer.
1. The fuel tank is empty.
1. Fill the fuel tank with gasoline.
2. The fuel shutoff valve is closed.
2. Open the fuel shutoff valve.
3. The choke is not on.
3. Move the choke lever fully forward.
4. The air cleaner is dirty.
4. Clean or replace the air cleaner
elements.
5. The spark plug wire is loose or
disconnected.
5. Install the wire on the spark plug.
6. The spark plug is pitted, fouled, or the
gap is incorrect.
6. Install a new, correctly gapped spark
plug.
The engine will not start, starts hard, or
fails to keep running.
7. Dirt, water, or stale fuel is in fuel
system.
7. Contact your Authorized Service
Dealer.
1. The engine load is excessive.
1. Reduce ground speed.
2. The air cleaner is dirty.
2. Clean or replace the air cleaner
elements.
3. The oil level in crankcase is low.
3. Check and add oil to the crankcase.
4. The cooling fins and air passages
under the engine blower housing are
plugged.
4. Remove any obstructions from the
cooling fins and air passages.
5. The spark plug is pitted, fouled, or the
gap is incorrect.
5. Install a new, correctly gapped spark
plug.
Engine loses power.
6. Dirt, water, or stale fuel is in fuel
system.
6. Contact your Authorized Service
Dealer.
1. The engine load is excessive.
1. Reduce ground speed.
2. The oil level in crankcase is low.
2. Check and add oil to the crankcase.
The engine overheats.
3. The cooling fins and air passages
under the engine blower housing are
plugged.
3. Remove any obstructions from the
cooling fins and air passages.
Abnormal vibration.
1. The engine mounting bolts are loose.
1. Tighten the engine mounting bolts.
1. The parking brake is on.
1. Release the parking brake.
2. The hydraulic fluid level is low.
2. Check and add hydraulic fluid.
3. The tow valves are open.
3. Close the tow valves.
The machine does not drive.
4. The hydraulic system is damaged.
4. Contact your Authorized Service
Dealer.
1. Sand or debris has built up in a tooth
root of the drive sprocket.
1. Run the chain backwards and then
reduce the chain tension.
2. The digging chain is too tight.
2. Adjust the digging chain tension.
3. The trencher boom end bearing has
failed.
3. Contact your Authorized Service
Dealer.
4. The trencher drive system is damaged.
4. Contact your Authorized Service
Dealer.
The chain does not turn
5. The hydraulic system is obstructed,
contaminated, or damaged.
5. Contact your Authorized Service
Dealer.
42
Содержание 22970
Страница 7: ...Slope Chart 7 ...
Страница 44: ...Schematics Electrical Schematic Model 22970 Rev A Electrical Schematic Model 22971 Rev A 44 ...
Страница 45: ...Hydraulic Schematic Model 22970 Rev A 45 ...
Страница 46: ...Hydraulic Schematic Model 22971 Rev A 46 ...
Страница 47: ...Notes 47 ...