PRODUCT SUPPORT PT TRAKINDO UTAMA Department : Oil Laboratory Area : HEAD OFFICE General General Limit Limit of Parti Particle cle Quan Quantitifier fier SOS Laboratory
Subject Owner
Doc. No: 002/XII/EXTSOS/08
SOS MEMO Issued Date To
04 December, 2008 All All Custom tomers
G L iim o f f P Paar r ttiiccllee Q Quuaannttiif f iieer r ((PPQ Geenneer r aall L miitt o Q IInnddeexx))
CAUTION These guidelines should only be used if there is no historical PQ data from the compartment. Trend analysis or specific PQ guidelines, by compartment, are needed to evaluate PQ results. Increasing PQ 50% relatively from previous trends should be considered a significant factor. The PQ is used as a ssupplement upplement to the core program (wear metal analysis & particle counting).
General Limit of Particle of Particle Quantifier (PQ Index) (PQ Index) Compartment
No Action Required
Monitor Condition
Action Required
Engine
0 to 28
29 to 35
Over 35
Transmission PS
0 to 44
45 to 55
Over 55
Hydraulic System
0 to 28
29 to 35
Over 35
Axle/ Differential
0 to 308
309 to 385
Over 385
Final Drive (Wheel Type)
0 to 216
217 to 270
Over 270
Final Drive (Track Type)
0 to 594
595 to 743
Over 743
Tandem & Swing Drive
0 to 594
595 to 743
Over 743
Sources : 1. Caterpillar SOS Services Evaluation Evaluation of the PQ Debris Monitor 2. Introduction of Ferrous Debris Monitor, Butler Machinery Company
