F
OR
M
ODELS
: JGI, JGM, JGN, JGP
AND
JGQ
S
ECTION
4 L
UBRICATION
PAGE 4-28
RATE CALCULATION NOTES
Packing Lube Rate
- Piston rod diameter is doubled and treated like a cylinder for calculat-
ing packing lube rate. For cylinders with a tail rod, the lube rate for each of the (two) pack-
ings is to be calculated separately and both values added toward the recommended total
daily lube rate.
Lube Points
- Cylinders for JG:A:I:M:P:N:Q:R:W:H:E:J and ACF frames with bore diame-
ters less than 13" (<330 mm) have one point bore lube as standard; top and bottom bore
lube is available as an original purchase option, (except for all Class T cylinders and 1-3/
4JG-FS-HE class cylinders, which have multi-point lube as standard). For all other frames,
the cylinders have multiple bore lube points as standard. Piston rod packings for high-pres-
sure cylinders have two point lube. For multiple lube points, the required lubricant for the cyl-
inder or packing is divided equally among the lube points.
Nitrogen
SAE 40 wt.
ISO 150
1 x Base Rate
or Various
Synthetics
1 x Base Rate
SAE 40 - 50 wt.
ISO 150 - 220
1 x Base Rate
or Various
Synthetics
1 x Base Rate
SAE 50 wt.
ISO 220
1 x Base Rate
or Various
Synthetics
1 x Base Rate
SAE 60 wt.
ISO 320
1 x Base Rate
or Various
Synthetics
1 x Base Rate
Cylinder Oil
ISO 460 - 680
1 x Base Rate
or Various
Synthetics
1 x Base Rate
Propane
c
(Refrigerant)
SAE 40 wt.
ISO 150
or Refrigerant Oil
0.5 x Base Rate
or Various
Synthetics
0.5 x Base Rate
SAE 40 wt.
ISO 150
or Refrigerant Oil
1 x Base Rate
or Various
Synthetics
1 x Base Rate
Refrigerant Oil
Contact Lubricant
Supplier
Refrigerant Oil
Contact Lubricant
Supplier
Refrigerant Oil
Contact Lubricant
Supplier
a. Also requires water-cooled packing (except cylinders on JG, JGA, JGM, JGN, JGP, JGQ & JGI).
b. Lean burn engine oils contain detergents, dispersants and ash additives, which hold water in suspension. This
suspension does not provide adequate lubrication in the cylinder and packings.
c. Verify oil pour point temperature is below inlet gas temperature.
4. Reference Table 4-10 for base rate.
T
ABLE
4-10 C
YLINDER
/P
ACKING
L
UBE
O
IL
B
ASE
R
ATE
FRAME MODEL
US PINTS/DAY/INCH
OF BORE DIAMETER
LITERS/DAY/mm OF
BORE DIAMETER
JG:A:I:M:P:N:Q:R:S:W
0.3
0.0056
JGH:E:J:ACF
0.4
0.0074
JGK:T:C:D:Z:U:B:V:KBB:V
0.5
0.0093
T
ABLE
4-9 C
YLINDER
/P
ACKING
L
UBE
O
IL
R
ECOMMENDATIONS
FOR
V
ARIOUS
G
AS
S
TREAM
C
OMPO
-
NENTS
GAS STREAM
CYLINDER DISCHARGE PRESSURE
< 1000
PSIG
< (70
bar
g
)
1000 TO 2000
PSIG
(70
to
140
bar
g
)
2000 TO 3500
PSIG
(140
TO
240
bar
g
)
A
3500 TO 5000
PSIG
(240
to
345
bar
g
)
1
>
5000
PSIG
>
(345
bar
g
)
1
