Lubrication - Emerson Fisher 785C Instruction Manual

785C Actuator
May 2022
Table 10. Tie Bolt Torque
BOLT DIAMETER
M10 x 1.5
M12 x 1.75
M16 x 2
M20 x 2.5
M24 x 3
M27 x 3
M10 x 1.5
M12 x 1.75
M16 x 2
M20 x 2.5
M24 x 3
M27 x 3
1. For other bolting materials or lubricants contact your

Lubrication

The type of grease used and recommended for lubrication purposes at normal operating temperature, is described in
table 11.
Table 11. Recommended Lubricant
MANUFACTURER
TYPE
NLGI GRADE
WORKED PENETRATION (DMM)
DROPPING POINT ASTM (5C)
ISO GRADE
EQUIVALENT GREASE
Check and Restore Manual Handpump Hydraulic Oil Level
During the actuator operation, the oil tank has to be closed (not in connection with the atmosphere). To avoid
cavitation, it is necessary to proceed as follows to check the oil tank oil level.
Refer to figure 45 and 46 unless otherwise indicated:
1. Remove the oil tank dipstick (key 2751-1.7).
2. Move the actuator into the open position.
3. Check that the oil level in the oil tank (key 2751-4) corresponds to the maximum level mark of the dipstick
(figure 22).
4. With the dipstick still removed, move the actuator to the closed position using the handpump.
28
(1)
TIE ROD MATERIAL
ASTM A320-L7
ASTM A320 B8M CL-2
Emerson sales office for torque information.
AGIP
GR MU/EP2
2
280
185
X2
ESSO BEACON EP2
BP GREASE LTX2
SHELL ALVANIA GREASE R2
ARAL ARALUB HL2
CHEVRON DURALITH GREASE EP2
CHEVRON SPHEEROL AP2
TEXACO MULTIFAK EP2
MOBILPLEX 47
PETROMIN GREASE EP2
NUT MATERIAL
ASTM A194 GR 7 S3
EN ISO3506-2 A4-80
Instruction Manual
D104483X012
TORQUE
Nwm lbfwft
40 30
70 52
160 118
320 236
550 406
800 590
30 23
58 43
130 96
250 185
440 325
535 395