INJECTOR & MTG GP-DEF 3625344 - Caterpillar

Required Tools
Table 1
Required Tools Qty
360-0774 Refractometer (Brix) 1
431-7087 Tool Gp (Refractometer (DEF)) 1 Test Procedure
32.5 Percent DEF
Illustration 1 g03748157
431-7087 Tool Gp (Refractometer (DEF))
Illustration 2 g03748158
Calibration point for distilled water
Follow the instructions included with the refractometer to calibrate the waterline of the meter.
Clean the refractometer and apply two drops of Diesel Exhaust Fluid (DEF) collected from the DEF tank.
Illustration 3 g03748161
Typical reading for DEF in good condition
Read the DEF quality in the refractometer. The DEF quality must measure 32.5 percent. If the DEF does not meet specification, replace the DEF in the tank with new DEF. The new DEF must meet ISO 22241 standards.Note: Dispose of the DEF removed as per local regulations.