Troubleshooting (Engine) - MULTIQUIP MAYCO LS300G Operation Manual

Symptom
Engine will not start or start is delayed,
although engine can be turned over.
At low temperatures engine will not start.
Engine fi res but stops soon as starter is
switched off.
Engine stops by itself during normal
operation.
Low engine power, output and speed.
PAGE 76 — MAYCO LS300G CONCRETE PUMP • OPERATION MANUAL — REV. #2 (09/09/19)

TROUBLESHOOTING (ENGINE)

Troubleshooting (Gasoline Engine)
Possible Problem
No Fuel reaching injection pump?
Defective fuel pump?
Fuel fi lter clogged?
Faulty fuel supply line?
Compression too low?
Fuel pump not working correctly?
Oil pressure too low?
Low starting temperature limit exceeded?
Defective battery?
Air or water mixed in fuel system?
Engine oil too thick?
Defective battery?
Fuel fi lter blocked?
Fuel supply blocked?
Defective fuel pump?
Fuel tank empty?
Fuel fi lter blocked?
Defective fuel pump?
Fuel tank empty?
Fuel fi lter clogged?
Leaks at pipe unions?
Speed control switch does not remain in
selected position?
Engine oil level too full?
Solution
Add fuel. Check entire fuel system.
Replace fuel pump.
Replace fuel fi lter and clean tank.
Replace or repair fuel line.
Check piston, cylinder and valves. Adjust or
repair per engine repair manual.
Repair or replace fuel pump.
Check engine oil pressure.
Comply with cold starting instructions and
proper oil viscosity.
Charge or replace battery.
Check carefully for loosened fuel line
coupling, loose cap nut, etc.
Refi ll engine crankcase with correct type of
oil for winter environment.
Replace battery.
Replace fuel fi lter.
Check the entire fuel system.
Replace fuel pump.
Add fuel.
Replace fuel fi lter.
Replace fuel pump.
Replace fuel fi lter.
Replace fuel fi lter.
Check threaded pipe unions tape and tighten
unions a required.
See engine manual for corrective action.
Correct engine oil level.