MUFFLER 1P0408 - Caterpillar

Recommendations for Lube Oils for the Power End
The use of fully synthetic industrial gear oils (IGO) is recommended to achieve the following:
optimum oil film thickness
reduced friction
improved startup of the pump
optimal wear protection
oil lifeIndustrial Gear Oil Requirements
Note: An automotive gear oil (AGO) with an extreme pressure package is not recommended.The use of mineral-based oils are acceptable if the oils meet the requirements listed below:
Viscosity grade: ISO VG 150, ISO VG 220, ISO VG 320
Synthetic Viscosity Index: 160 minimum
Mineral-based viscosity index : 100 minimum
Viscosity of 20 cSt minimum at 100° C (212° F)
Pour point −30° C (−22° F)Alternate Seasonal Conventional (Non-Synthetic) Gear Oils
Note: Contact engineering for approval prior to use through the Application Support Center (ASC) at website: http://application support.cat.comPlunger Packing Oil
The use of an optimal plunger lubricant is critical to achieve full performance and service life that is designed and built into the pump. Cat Fluid Ends are designed to perform with either an oil or grease-based lubrication system.The use of a modern machine tool Way Oil for improved lubrication of the plungers and packing is highly recommended by Caterpillar. In an area where a Way Oil is not available, a suitable Rock Drill oil may be substituted.The use of Cat HYDO Advanced oils, SAE 10, and SAE 20 are acceptable for this application.Note: Use of lubricants that do not meet recommendations is unacceptable and may result in shorter plunger life, packing life, and premature failure of these components.Proper lubrication is critical during the start-up of the pump. Lubricant for the plunger must flow freely to the lube inlet prior to the start-up of the pump and stroking of the plungers.Refer to Table 1 for the specifications that must be met by an acceptable Way Oil or Rock Bit plunger pump oil. The use of lubricants that fail to meet these specifications is not allowed. The use of used crankcase oil is unacceptable.
Table 1
Specifications for Plunger Pump Oils
Characteristic Requirements for Ambient Conditions
≥ 0° C (32° F) < 0° C (32° F)
ISO Grade 32 68
CPS Number 232500 232511
AGMA Grade ---- 2
API Gravity 21.4 25.6
cSt at 40°C(1) 30.4 64.6
cSt at 100°C(1) 4.9 7.3
SUS at 100°F(2) 158 338
SUS at 210°F(2) 42.7 50.8
Viscosity Index 74 61
Flash Point 170° C (338° F) 198° C (389° F)
Pour Point −44° C (−48° F) −24° C (−11° F)
(1) Viscosity, Kinematic
(2) Viscosity, SayboltPlunger Packing Grease
Refer to table 2 for specifications that must be met by a plunger grease if this option is selected.Note: Startup is a critical time for plunger packing. Lubrication should flow freely to plunger prior to stroking the pump. Stroking dry plungers can cause the header ring and packing to tear and fail.
Table 2
Recommendations for Plunger Packing Grease
NLGI Grade 00
Operating Temperature Celsius/Fahrenheit Minimum
−40° C (−40° F) Maximum
132° C (270° F)
Penetration, at 25° C (77° F) Worked (60 Strokes) 400 Minimum
Timken OK Load, lb. 45 Minimum
ISO Viscosity, Kinematic at 100° C (212° F) 220
cSt Viscosity, at 120° C (248° F) 20.7
SUS Viscosity, at 210° C (410° F) 104.2
Viscosity Index 100 Minimum