SKF SFD, Owner'S Manual, Page: 2 / 61

Table of Contents
SAFETY MESSAGES IN MANUAL AND IN WARNING LABELS ........................................................ 3
SEPARATOR FILTER DRYER ................................................................................................................... 4
SPECIFICATIONS SFD DRYER SYSTEMS .............................................................................................. 5
SFD DRYER SIZING CHART ..................................................................................................................... 6
GENERAL MOUNTING INSTRUCTIONS: ............................................................................................... 7
BASIC OPERATION AND INSTALLATION MOUNTING INSTRUCTIONS ........................................ 8
Micro Logic Timer .................................................................................................................................................. 8
Programmable Logic Control (PLC) 120 thru 800 ............................................................................................... 10
Pneumatically Controlled (PC) 40 thru 200 CFM SFD Dryer Systems ............................................................... 11
ANNUAL INSPECTIONS .......................................................................................................................... 12
MLT (Micro Logic Timer) Dryers .......................................................................................................................... 12
PLC (Programmable Logic Control) Dryers ......................................................................................................... 12
PC (Pneumatic Control) Dryers ........................................................................................................................... 12
FLOW DIAGRAMS .................................................................................................................................... 13
SERVICE COMPONENTS ......................................................................................................................... 17
Micro Logic Timer (MLT) Applications (5 – 120 CFM Dryer Systems) ................................................................ 17
Programmable Logic Control (PLC) Applications (120, 240 400, 600, 800 CFM Dryer Systems) ...................... 19
Pneumatically Controlled Applications ................................................................................................................ 21
TROUBLESHOOTING SFD AIR DRYER SYSTEMS ............................................................................. 23
MLT, PLC and Pneumatically Controlled Operation/Cycle & Problem Scenarios............................................... 23
SERVICE REPLACEMENT PROCEDURES SFD AIR DRYING SYSTEM .......................................... 27
Desiccant Cartridge Kit Options .......................................................................................................................... 27
Adapter Plate/Cartridge Stud ............................................................................................................................... 27
Micro Logic Timer Replacement (MLT) ............................................................................................................... 29
Air Control Valve - MLT Dryer Systems ............................................................................................................... 29
Inlet Check Valves ............................................................................................................................................... 30
Outlet Check Valve .............................................................................................................................................. 31
Regeneration Valve ............................................................................................................................................. 31
Heater Assembly ................................................................................................................................................. 32
Reset pneumatic control ...................................................................................................................................... 32
OIL COALESCER ....................................................................................................................................... 33
Installation and How It Works .............................................................................................................................. 33
Float Drain Service Procedures ........................................................................................................................... 35
ILLUSTRATIONS ....................................................................................................................................... 35
Service Components ........................................................................................................................................... 36
Air Dryer Systems ................................................................................................................................................ 40
ACCESSORIES ........................................................................................................................................... 48
Moisture Minder® ................................................................................................................................................ 48
Regeneration Flow Cut-Off Kit ............................................................................................................................. 49
Installation ............................................................................................................................................................ 49
Troubleshooting Regeneration Cutoff Solenoid (RCS) ....................................................................................... 49
PART NUMBERS ....................................................................................................................................... 51
Service Components ........................................................................................................................................... 51
Air Dryer Systems ................................................................................................................................................ 52
GLOSSARY OF TERMS ............................................................................................................................ 52
WARRANTY ............................................................................................................................................... 60
WARNING
Read, understand and follow safety precautions and instructions in this manual and
in the labels attached to the dryer system. Failure to do so could result in serious
injury, death and property damage.
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