Utile L175HP, Инструкция по установке, эксплуатации и обслуживанию

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GAS COMPRESSORS / BOOSTERS

GAS & AIR MIXING SYSTEMS

AIR BLOWERS & VACUUM PUMPS
The Utile Engineering Co. Ltd. Irthlingborough, Northamptonshire, NN9 5UG, ENGLAND
Telephone: + 44 (0) 1933 650216 Facsimile: + 44 (0) 1933 652738 Email: sales@utileengineering.com www.utileengineering.com
11 IC182
Fig. 8
Scribe mark with rod
resting on rotor, turn
rotor and scribe mark
with rod on blade
Troubleshooting
The following table shows some typical problems and the remedies.
Note: If assistance is required in determining or correcting the fault with the machine then contact our service department.
1. Check Blade Wear
When carrying out any maintenance and inspections always follow the health and
safety guidelines on page 4. Fully trained and competent staff must carry out any
maintenance work.
1.1 Carry out the following procedure after the first 2,000 running hours
and repeat every 5,000-hour interval. Record all measurements.
1.2 With the pump stationary and with the system drained, remove the
eyebolt or plug in the top of the machine cylinder and insert into the
hole beneath a pointed measuring rod 6mm dia x 150mm long until
contact is made with the rotor (see fig. 8). Scribe a mark on the rod.
Slowly rotate the shaft by hand until the rod drops onto the tip of the
blade, scribe a second mark on the rod. Measure the amount of
movement and renew the blades if this exceeds 6mm. Replace the plug
or eyebolt.
Troubleshooting
Check Blade Wear
SYMPTONS CAUSES REMEDIES
Machine revolves in wrong direction Incorrect connection of motor terminal Re-arrange terminal connection
Discharge air temperature excessive 1. Machine operating at higher duty than
specified. 1. Check rating.
2. Blocked intake filter. 2. Clean intake filter.
3. Insufficient or wrong lubrication. 3. Use correct lubrication and feed rates.
4. Warped / Sticking blades 4. Replace blades
Excessive blade wear 1. Insufficient lubricant to cylinder. 1. Inspect & clean oil lines, oil holes.
2. Incorrect lubricant. 2. Use correct lubricant.
3. Dirty inlet air/gas. 3. Clean & inspect intake.
4. Excessive operating temperature 4. See remedies for excessive discharge
temperature.
Abnormal noise, vibration or periodic
knocking
1. Worn bearing. 1. Replace bearing.
2. Excessive blade wear. 2. Replace blades & check lubrication
3. Erratic cylinder wear. 3. Rebore, redowel & check lubrication.
4. Insufficient lubrication 4. Increase lubrication rate
5. Rotor contacting coverplates 5. Check temperature, pressure &
internal clearances
6. Drive misalignment 6. Realign and retension drive.
7. Warped rotor blades. 7. Replace rotor blades.
8. Excessive liquid carryover. 8. Drain all points.
Pressure cannot be built up or only up
to a certain extent.
1. Worn blades. 1. Replace rotor blades.
2. Improper belt tension. 2. Adjust belt tension.
3. Sticking relief valve. 3. Clean and replace.
Slipping of belts 1. Improper belt tension. 1. Adjust belt tension.
2. Worn belt. 2. Replace with new ones.
Overheating of electric motor 1.Overloading of motor due to excessive
working pressure. 1. Lower working pressure.
Machine does not start 1. Breakdown of electric current 1. Contact power company.
2. Malfunction of motor. 2. Check motor.
3. Wrong motor connections. 3. Check electrical connections.
Shaft partially or totally locked 1. Faulty bearing 1. Replace bearing.
2. Foreign particles in machine. 2. Disassemble machine and remove
foreign particles.
3. Machine seized. 3. Repair machine.