Ariel JGI, Technical Manual

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F
OR
M
ODELS
: JGI, JGM, JGN, JGP
AND
JGQ T
ABLE
O
F
C
ONTENTS
ii 9/08
Lubricant Characteristics ........................................................................................ 4-2
Viscosity ............................................................................................................ 4-2
Viscosity Index ...................................................................................................4-3
Pour Point ..........................................................................................................4-3
Flash Point ......................................................................................................... 4-3
Lubricant Base Stock .............................................................................................. 4-3
Petroleum-Based Lubricants (also referred to as mineral oils) .......................... 4-3
Synthetic Lubricants .......................................................................................... 4-4
Lubricant Formulations ........................................................................................... 4-5
Compounded Cylinder Oils ................................................................................ 4-5
R&O Oil ............................................................................................................. 4-5
Engine Oil ..........................................................................................................4-5
Used Engine Oil ................................................................................................. 4-6
Gear Oil ............................................................................................................. 4-6
FRAME OIL SYSTEM ............................................................................................. 4-7
COMPONENTS ................................................................................................. 4-7
Oil Strainer ......................................................................................................... 4-7
Oil Pump ............................................................................................................ 4-7
Oil Cooler ........................................................................................................... 4-7
Oil Temperature Control Valve .......................................................................... 4-8
Oil Filtration ....................................................................................................... 4-8
Compressor Prelube Pump ............................................................................... 4-9
Oil Heaters ......................................................................................................... 4-9
Lube Oil Analysis Sampling Point .................................................................... 4-10
Cold Starting .................................................................................................... 4-11
Dry Sump ......................................................................................................... 4-12
FRAME OIL OPERATING CONDITIONS ............................................................. 4-13
Compressor Frame Lubricant .......................................................................... 4-13
Oil Viscosity ..................................................................................................... 4-14
Oil Pressure ..................................................................................................... 4-14
Oil Temperature ............................................................................................... 4-14
Oil Maintenance ............................................................................................... 4-15
Oil Sampling .................................................................................................... 4-15
Oil System Cleanliness ......................................................................................... 4-15
Cylinder and Packing Lubrication ......................................................................... 4-17
Independent Force Feed Lubricator Systems ................................................. 4-17
Common Oil Supply ......................................................................................... 4-17
Independent Oil Supply ................................................................................... 4-18
Force Feed Lubrication System Components ....................................................... 4-18
Gas Inlet Debris Screens to Maintain Lube Performance ............................... 4-18
Injection Oil Inlet Filter ..................................................................................... 4-19
Oil Dilution ....................................................................................................... 4-19
Cylinder Oil Lubrication Examples ................................................................... 4-19
Under/Over Lube ............................................................................................. 4-19
Inadequate Lubrication Symptoms .................................................................. 4-20
Lubrication Quantity - Paper Test Method ....................................................... 4-20
Lubricator Cycle Time ...................................................................................... 4-20
Cycle Time Indication ...................................................................................... 4-21
Force Feed Lubrication System Monitoring: .................................................... 4-21