Emerson Fisher 785C, Instruction Manual

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Instruction Manual
D104483X012
785C Actuator
May 2022
29
5. Reinstall and tighten the dipstick.
To replace or add oil, proceeding as follow:
1. Remove the dipstick (key 2751-1.7) from the tank cover (key 2751-22).
2. To drain oil, unscrew the plug (key 2751-27) and remove the washer (key 2751-9).
Note
If dirt and/or sludge is found in the oil drained from the tank, before filling with new oil in the tank, disassemble the oil tank tube by
unscrewing the two cap nuts (key 2751-2) and clean the internal surfaces of the tank. If necessary replace the tank O-ring
(key 2751-21) .
3. Reinstall the washer (key 2751-9) and tighten the plug (key 2751-27) onto the plate (key 2751-11). Pour the new oil
into the tank through the dipstick hole on the cover (key 2751-22).
4. Reinstall and tighten the dipstick (key 2751-1.7).
5. If the oil in the tank is below the minimum level mark (figure 22) add additional oil per table 12.
Figure 22. Hydraulic Manual Handpump Dipstick Oil Level Mark
MINIMUM LEVEL
(OR LOWER NOTCH)
MAXIMUM LEVEL MARK
(UPPER NOTCH)
Table 12. Handpump Hydraulic Oil
Lower Temperature Hydraulic Oil
Standard :
-20 to 100 °C (-4 to 212 °F)
AGIP ARNICA 22 or equivalent oils (SHELL TELLUS PLUS 22,
CHEVRON HYDRAULIC OIL AW ISO 22, MOBIL DTE22,
EXXON UNIVIS N22, EQUIVIS ZS22, BP ENERGOL HLP-HM22,
CASTROL DYSPIN AWS22)
Low Temperature Options:
-40 to 100°C (-40 to 212°F) or
-60 to 100°C (-76 to 212°F)
Aeroshell Fluid 41