Sullair ShopTek ST18, Operation & Maintenance Manual, Page: 5 / 76

ST18 & ST22 (U.S.A. & Mexico) Operation & Maintenance Manual Table of Contents
88291013-137 R05
Subject to EAR, ECCN EAR99 and related export control restrictions. iii
Section 6: Maintenance..........................................................................................27
6.1 General..................................................................................................... 27
6.2 Daily maintenance .................................................................................... 27
6.2.1 Before starting the compressor............................................................................27
6.2.2 After starting the compressor...............................................................................27
6.3 Recommended maintenance schedule .................................................... 28
6.3.1 Service at 50 operating hours..............................................................................28
6.3.2 Service every 1000 operating hours ....................................................................28
6.3.3 Service every 2000 operating hours ....................................................................28
6.3.4 Service every 4000 operating hours (or semi-annually) ......................................28
6.3.5 Service every 10,000 hours (or yearly)................................................................28
6.3.6 Compressor fluid levels .......................................................................................29
6.4 Compressor maintenance ........................................................................ 29
6.4.1 Adding compressor fluid ......................................................................................29
6.4.2 Changing compressor fluid ..................................................................................29
6.4.3 Fluid filter maintenance........................................................................................30
6.4.4 Air filter maintenance ...........................................................................................30
6.4.5 Purge oil return line filter maintenance ................................................................31
6.4.6 Fluid/air separator maintenance ..........................................................................31
6.4.7 Minimum pressure valve maintenance ...............................................................33
6.4.8 Blowdown valve maintenance .............................................................................33
6.4.9 Solenoid valve maintenance................................................................................33
6.4.10 Pressure regulator maintenance..........................................................................33
6.4.11 Drive coupling maintenance ................................................................................34
6.5 Main motor operation and maintenance ................................................... 34
6.5.1 Main motor operation...........................................................................................35
6.5.2 Main motor maintenance and repair ....................................................................35
6.5.3 Periodic inspection of the main motor..................................................................35
6.5.4 Check and clean the windings .............................................................................36
6.6 Troubleshooting........................................................................................ 36
Section 7: Parts List ...............................................................................................39
7.1 Procedure for ordering parts..................................................................... 39
7.2 Recommended spare parts list................................................................. 40
7.3 Motor and air end system ......................................................................... 42
7.4 Air inlet system ......................................................................................... 44
7.5 Fluid piping system................................................................................... 46
7.6 Cooling fan system ................................................................................... 48
7.7 Fluid/air separation system....................................................................... 50
7.8 Air discharge system ................................................................................ 52
7.9 Control system.......................................................................................... 54
7.10 Starter assembly—460/230V dual voltage ............................................... 56
7.11 Starter assembly—460V........................................................................... 58