BE-LS40TS390 USER MANUAL
21
HYDRAULIC TROUBLESHOOTING
For repairs beyond the minor adjustments listed here, contact an authorized service dealer.
PROBLEM
POSSIBLE CAUSE
POSSIBLE REMEDY
Slow cylinder shaft speed
while extending and
retracting.
1. Gear sections damaged.
2. Excessive pump inlet vacuum.
3. Slow engine speed.
4. Damaged relief valve.
5. Incorrect oil level.
6. Contaminated oil.
7. Directional valve leaking internally.
8. Internally damaged cylinder.
1. See authorized service dealer.
2. Make certain pump inlet hoses are clear and unblocked-
use short, large diameter inlet hoses.
3. See authorized service dealer.
4. See authorized service dealer.
5. Check oil level.
6. Drain oil, clean reservoir, and refill.
7. See authorized service dealer.
8. See authorized service dealer.
Leaking Cylinder
1. Broken seals.
2. Scored cylinder.
1. See authorized service dealer.
2. See authorized service dealer.
Engine runs but wood will
not split or wood splits
too slowly
1. Small gear section damaged.
2. Pump check valve leaking.
3. Excessive pump inlet vacuum.
4. Incorrect oil level.
5. Contaminated oil.
6. Directional valve leaking internally.
7. Overloaded cylinder.
8. Internally damaged cylinder.
1. See authorized service dealer.
2. See authorized service dealer.
3. Make certain pump inlet hoses are clear and unblocked.
4. Check oil level.
5. Drain oil, clean reservoir, and refill.
6. See authorized service dealer.
7. Do not attempt to split wood against the grain.
8. See authorized service dealer.
Engine stalls during
splitting
1. Low horsepower/weak engine.
2. Overloaded cylinder.
1. See authorized service dealer.
2. Do not attempt to split woodagainst the grain or see
authorized service dealer.
Engine will not turn or
stalls under low load
conditions
1. Engine/pump misalignment.
2. Frozen or seized pump.
3. Low horsepower/weak engine.
4. Hydraulic lines blocked.
5. Blocked directional valve.
1. Correct alignment as necessary.
2. See authorized service dealer.
3. See authorized service dealer.
4. Flush and clean hydraulic system.
5. Flush and clean hydraulic system.
Leaking pump shaft seal
1. Broken drive shaft.
2. Engine/pump misalignment.
3. Gear sections damaged.
4. Poorly positioned shaft seal.
5. Plugged oil breather.
1. See authorized service dealer.
2. Correct alignment as necessary.
3. See authorized service dealer.
4. See authorized service dealer.
5. Make certain reservoir is properly vented.
Engine fails to start
1. Spark plug wire disconnected.
2. Fuel tank empty or stale fuel.
3. Choke, if equipped, not in CHOKE position.
4. Faulty spark plug.
5. Blocked fuel line.
6. Engine (if equipped with a primer) notprimed
properly.
7. Throttle control lever not in correct starting
position.
1. Connect wire to spark plug.
2. Fill tank with clean, fresh gasoline.
3. Move choke to CHOKE position.
4. Clean, adjust gap, or replace.
5. Clean fuel line.
6. Prime engine.
7. Move throttle lever to FAST position.
Engine runs erratic
1. Unit running with CHOKE applied, if so equipped.
2. Spark plug wire loose.
3. Blocked fuel line or stale fuel.
4. Water or dirt in fuel system.
5. Dirty air cleaner.
6. Carburetor not adjusted properly.
1. Move choke lever to OFF position.
2. Connect and tighten spark plug wire.
3. Clean fuel line; fill tank with clean, fresh (less than 30 days
old) gasoline.
4. Drain fuel tank. Refill with fresh fuel.
5. Clean or replace air cleaner.
6. See authorized service dealer
Engine Overheats
1. Engine oil level low.
2. Dirty air cleaner.
3. Carburetor not adjusted properly.
1. Fill crankcase with proper oil.
2. Clean or replace air cleaner.
3. See authorized service dealer.
Cylinder rod will not
move
1. Broken drive shaft.
2. Shipping plugs left in hydraulic hoses.
3. Set screws in coupling not adjusted properly.
4. Loose shaft coupling.
5. Gear sections damaged.
6. Damaged relief valve.
7. Hydraulic lines blocked.
8. Incorrect oil level.
9. Damaged directional valve.
10. Blocked directional valve.
1. See authorized service dealer.
2. Disconnect hydraulic hoses, remove shipping plugs,
reconnect hoses.
3. See operator’s manual for correct adjustment.
4. Correct engine/pump alignment as necessary.
5. See authorized service dealer.
6. See authorized service dealer.
7. Flush and clean hydraulic system.
8. Check oil level.
9. See authorized service dealer.
10. Flush and clean hydraulic system.
