BLACKMER LB161B - Bolt Torque Table; Crankcase Lubrication; Setting the Oil Pressure; Figure

MAINTENANCE
588/A page 12/24
BOLT TORQUES FOR BLACKMER COMPRESSORS LBS-FT (Nm)
Size
Connecting
Rod Bolt
Bearing
Carrier
Bearing
Cover
Plate
Crankcase
Inspection
Plate
Crosshead
Guide
Cylinder Head
Piston
Nut
Valve
Cover
Plate
Valve
Hold Down
Screw
Valve
Cap
160
30
(40.7)
30
(40.7)
35
(47.5)
7
(9.5)
25
(33.9)
25
(33.9)
20
(27.1)
40
(54)
--
120
(163)
80
(108)
360
35
(47.5)
30
(40.7)
35
(47.5)
7
(9.5)
35
(47.5)
35
(47.5)
40
(54))
40
(54)
35
(47.5)
80
(108)
80
(108)
600
45
(61)
30
(40.7)
40
(54)
7
(9.5)
40
(54)
40
(54)
40
(54)
60
(81)
35
(47.5)
80
(108)
80
(108)
Table 7 - Bolt Torque
CRANKCASE LUBRICATION
Change the crankcase oil every 1,000
hours or 180 days, whichever is shorter.
Under severe dusty or sandy operating
conditions, the oil should be changed
every 500 hours or every 90 days.
A high quality non-detergent oil is
recommended. The oil used should
be of high quality such as API grade
SF, SG, SH or similar. API grade SA,
SB, SC or similar oils should never
be used. Recycled oils should
never be used.
Consult factory for special lubricating
requirements.
Before changing the oil, bring the
compressor up to normal operating
temperature. Remove the crankcase
drain plug and drain the oil into an
adequately sized container. Remove
the oil pickup screen and clean in a
suitable solvent. When reinstalling the
pickup screen, inspect the metal gasket
and the O-ring for damage, replacing as
necessary. If equipped, replace the
external oil filter. See Figure 8.
Refill the crankcase via the dipstick opening. DO NOT
OVERFILL THE CRANKCASE!
The oil pump on these models will operate in either
direction of crankshaft rotation.
SETTING THE OIL PRESSURE (see Figure 8)
1. The oil pressure should be about 25 psig
(173 KPa).
2. Loosen the locknut.
3. Increase the pressure setting by turning the
adjusting screw inward, CLOCKWISE.
Decrease the pressure setting by turning the
adjusting screw outward, COUNTER-CLOCKWISE.
4. Retighten the locknut.
Models Quarts
LB161B, LB162B
LB361B, LB362C
LB601B, LB602B
2
3
7
Table 8 - Oil Capacity
Air Temperature Oil Viscosity
Below 0°F (-18°C)
0 to 32°F (-18 to 0°C)
32 to 80°F (0 to 27°C)
80°F (27°C) and above
SAE 5W
SAE 10W
SAE 20W
SAE 30W
Table 9 - Oil Viscosity
Figure 8 - Compressor Lubrication System