BAR-EQUALIZER 7T7307 - Caterpillar

Care must be taken to ensure that fluids are contained during performance of inspection, maintenance, testing, adjusting and repair of the product. Be prepared to collect the fluid with suitable containers before opening any compartment or disassembling any component containing fluids.Refer to Special Publication, NENG2500, "Caterpillar Tools and Shop Products Guide" for tools and supplies suitable to collect and contain fluids on Caterpillar products.Dispose of all fluids according to local regulations and mandates.
Take the oil samples as close as possible to the standard intervals. To receive the full value from S O S oil analysis, you must establish a consistent trend of data. To establish a pertinent history of data, perform consistent oil samplings at set intervals.Operate the machine for a few minutes before you obtain the oil sample. This will thoroughly mix the oil for a more accurate sample.Reference: Refer to Special Publication, PEHP6001, "How To Take A Good Oil Sample" for more information about obtaining an oil sample.
Table 1
Type of Fluid     Change Interval     Sampling Interval     Sampling Valve    
Engine Oil     250 Hours     250 Hours     Yes    
Transmission Oil     1000 Hours     500 Hours     Yes    
Hydraulic Oil     2000 Hours     500 Hours     Yes    
Differential and Final Drive Oil     2000 Hours     500 Hours     No    
Coolant     6000 Hours     500 Hours     No    Consult your Caterpillar dealer for complete information and for assistance in establishing an S O S program for your equipment.Location of Sampling Valves
Illustration 1 g00274449
The sampling valve for the engine oil is located on the engine oil filter base on the right side of the engine compartment.
Illustration 2 g00534636
The sampling valve for the transmission oil is located next to the transmission hydraulic control valve on the top of the engine.
Illustration 3 g00524487
The sampling valve for the hydraulic oil is located near the main control valve on the left side of the front frame.
Illustration 4 g00535224
Front Axle
Illustration 5 g00535225
Rear AxleThe axles are not equipped with sampling valves. Obtaining a sample of the differential and final drive oil will require a vacuum pump or an equivalent. Remove the filler plug and withdraw the oil through the filler opening on each axle.
Illustration 6 g00270343
The cooling system is not equipped with a sampling valve. Obtaining a sample of the coolant will require a vacuum pump or an equivalent. Slowly remove the cooling system pressure cap on the right side of the radiator and withdraw the oil through the filler opening.More Frequent S O S Sampling Improves Life Cycle Management
Traditionally, the suggested S O S sampling intervals have been at each oil change (250 hours for engines and every 500 hours for all other compartments). However, more frequent oil sampling is recommended in severe applications. If the machine is operated under a high load and/or in high temperature conditions, sample all compartments at every 250 hour interval.Application
Studies have revealed that obtaining oil samples at every 500 hours is too long a time interval in some applications