Hertz HDD 75 - Page 5

8 FAILURES ............................................................................................................................................... 48
8.1 General ......................................................................................................................................... 48
8.2 Failures, Reasons and Solutions ................................................................................................. 49
9 MAINTENANCE ....................................................................................................................................... 57
9.1 Safety during maintenance .......................................................................................................... 58
9.2 Periodical Maintenance Check List .............................................................................................. 58
9.2.1 Daily Maintenance ....................................................................................................................... 58
9.2.2 Every 125 hours operation .......................................................................................................... 58
9.2.3 Every 2000 hours operation or 6 months .................................................................................... 59
9.2.4 Every 4000 hours operation or 12 months .................................................................................. 59
9.2.5 Every 8000 hours operation or 12 months .................................................................................. 59
9.2.6 Every 16000 hours operation or 24 months ................................................................................ 60
9.3 Maintenance Instructions ............................................................................................................. 60
9.3.1 Compressor Oil ............................................................................................................................ 60
9.3.2 Oil Replacement .......................................................................................................................... 62
Replace the oil in the compressor at suitable intervals for the oil type used. ........................................ 62
9.3.3 Oil Filter Replacement ................................................................................................................. 63
9.3.4 Panel filter and control box filter replacement ............................................................................. 64
9.3.5 Air filter replacement .................................................................................................................... 65
9.3.6 Air filter replacement .................................................................................................................... 65
9.3.7 Replacement of Separator Element ............................................................................................ 66
9.3.8 Maintenance of the Cooling Radiator .......................................................................................... 68
9.3.9 Maintenance Of The Separator Oil Return Line (Scavenge) ...................................................... 69
9.3.10 Intake Valve Maintenance Kit ...................................................................................................... 70
9.3.11 Thermostatic Valve Maintenance Kit and Thermal Element Replacement ................................. 72
9.3.12 Minimum Pressure Valve Maintenance Kit Replacement ........................................................... 73
9.3.13 Motor Maintenance ...................................................................................................................... 74
9.3.14 Bearing Grease............................................................................................................................ 74
9.3.15 Coupling replacement and adjustment ........................................................................................ 75