Flowserve L120-190 through L120-2000 - Manual (Page 25)

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Limitorque ® L120-190 through L120-2000 FCD LMENIM1203-00 – 10/11
flowserve.com
• Consistency – Ensure the lubricant is fluid approximating a standard NLGI-0 grade consistency or
less. Thinners such as Amoco WAYTAC #31 oil may be added provided the volume of thinner does
not exceed 20% of the total lubricant.
7.1.2 Factory Lubricant
Gear Case
• The L120-190 through 2000 is factory-lubricated with an NLGI Grade 00 lithium-base grease, suitable
for temperatures from 0°F to 225°F (-18°C to 107°C).
Geared Limit Switch
• Mobil 28 (No Substitute)
Table 7.1 – Lubricant Weights
Actuator Size lb. kg
L120-190 15 5.6
L120-420 50 18.7
L120-800 Drive 1 71 26.5
L120-800 Drive 2 75 28
L120-2000 Drive 1 65 24.3
L120-2000 Drive 2 72 26.9
Minimum Lubricant Qualities Required
The standard lubricants used by Limitorque have been proven to be extremely reliable over years of
service. Limitorque does not recommend a particular lubricant substitute for the standard lubricants;
however, Limitorque does require the following lubricant qualities as a minimum.
a CAUTION: Do not mix lubricants of a different base chemical. Mixing lubricant bases may cause
lubricant properties to be ineffective.
The lubricant must:
• Contain an “EP” additive.
• Be suitable for the temperature range intended.
• Be water and heat-resistant and non-separating.
• Not create more than 8% swell in Buna N or Viton.
• Not contain any grit, abrasive, or fillers.
• Comply with a slump-prefer NLGI-00 grade.
• Not be corrosive to steel gears, ball, or roller bearings.
• Have a dropping point above 316°F (158°C) for temperature ranges of 0°F to 225°F (-18°C to 107°C).