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: [email protected]
www.utileengineering.com
Feb-19
14
IC013 Rev2
Shell Gadus Grease
S3 V100 2
Base Oil (type)
Mineral
NLGI Consistency
2
Kinematic Viscosity
@ 40
C cSt
100
C cSt (IP71/ASTM-D445)
100
11.3
Dropping Point ºC (IP396)
250
Maximum Operating Temperature
C (peak) 150 (180)
Minimum Operating Temperature
C
-20
Cone Penetration
Worked @ 25
C 0.1mm
(IP 50/ASTM-D217)
265-295
Pre Start-up Checks
Before starting the machine for the first time after installation, maintenance or after a long downtime, make the following checks: -
Ensure all the anchor bolts for the machine, base and motor are securely fastened.
Ensure electrical power is connected correctly with suitable protection fitted.
Ensure all equipment is installed and earthed in accordance with current legislation.
Ensure all equipment is certified and suitable for the zone in which it is being installed in
Ensure all cooling fans are not obstructed.
Check that the machine is free running by turning the shaft by hand through a few revolutions.
Flick start the motor to check that the direction of rotation agrees with the arrow on top of the machine cylinder. Note this
should be completed with the coupling/drive belts removed.
Recheck coupling/drive alignment and retension (see page 11).
Check all guarding is fitted correctly and securely.
Check all piping connections.
If the system is to be pressure tested, all gauges and pressure switches must be isolated or removed. Maximum purge or
pressure test is 1.50 times the working pressure.
Check all protective devices ensuring they are working correctly.
Ensure personnel are adequately protected from accidental contact with all dangerous equipment.
Instruct the operating personnel that the machine is operational.
Start-up
Proceed as follows: -
i.
When starting boosters the intake and discharge valves are fully open.
ii.
Boosters should always be started under load conditions.
iii.
Start the drive motor and bring the machine up to operating speed.
iv.
When full speed is reached slowly close the manual start-up bypass valve.
v.
Check all protective devices and controls making sure they are working correctly.
vi.
Check the machine vibration is within the limits.
vii.
Check that the motor running current is within the full load current indicated on the motor nameplate.
Operating Notes
After the initial running in period, check the belt tension. Belt squeal denotes a loose belt that requires tightening.
During freezing conditions, ensure all cooling fans are not obstructed, and able to rotate freely.
Inspect the filter fitted to the inlet, regularly clean and renew the element when necessary.
Excessive discharge temperature for normal operation as indicated by the rise in temperature shown in the log book
indicates inadequate cooling, faulty lubrication or a dirty intake filter. The machine should be stopped and inspected.
Check the machine internally for wear every 10,000 running hours. (see Inspection and Service)
When checking for bearing and seal wear, the old grease must be removed and replaced with new.
If machine is on a standby service, run for a few minutes each week.
When all intake and discharge pipework and thus all machine wetted parts are completely filled with the process fluid during
normal operation, an explosive atmosphere is prevented from occurring. If this condition cannot be guaranteed, then any
appropriate monitoring devices must be used by the user.
Stopping Procedure
Proceed as follows: -
i.
Trip out or Stop the drive motor.
Lubrication
The recommended grade of grease is Shell Gadus S3 V100 2 the typical
physical characteristics are shown right.
The quantity and relubrication times cannot be exactly specified as the
grease consumption depends on the operating conditions of the machine
and on the environmental conditions. In general the bearing housing
should be filled up to 1/2 of the free volume.
Note: if lubrication is excessive, bearing self-heating takes place with an increasing bearing temperature over time. However, if the
lubrication is correct after an initial increase the temperature decreases.
Pre Start-up Checks
Operating Notes
Stopping Procedure
Lubrication
