Hertz HDD 75 - Minimum Pressure Valve Maintenance Kit Replacement

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MAINTENANCE

9.3.12 Minimum Pressure Valve Maintenance Kit Replacement

Minimum Pressure Valve Maintenance Kit (K) replacement is performed every 8000 hours or 12 month

whichever occurs first. For trouble-free operation of your compressor, the kits should be replaced in a timely

manner.

HDD-HVD 18-22 Models

HDD-HVD 30-37-45 Models

HDD-HVD 55-75 Models

Main Page

Table of Contents3
General8
Foreword8
Cautions8
Copyright8
Warranty and Liability8
Type Approval and Genuine Spare Parts9
Technical Service9
Descriptions and Warnings9
Table 1 Descriptions and Warnings9
Safety10
Operating Conditions10
Unauthorized Modifications/Changes10
Compressed Air Line Connections11
Fire and Explosion Risk11
Moving Parts12
Combustible and Sharp Surfaces12
Combustible and Irritant Substances13
Electrical Accidents13
Important Points before You Begin14
Compressor and Environmental Cleaning14
Personal Protection and Safety14
Safety and Warnings15
Figure 1 Safety and Warnings15
Recommendations16
Air Filter17
Safety and Protection Systems17
Noise Protection17
Environmental Conscience17
Compressor Operation18
General View of HDD 22 Direct Drive18
Figure 2 HDD Direct Drive Model18
Table 2 Main Parts of HDD 22 Direct Drive Model18
Compressor Operation19
Drive and Control19
Figure 3 Direct Drive System19
Pressure System20
Figure 4 Pressure System20
Intake and Control System22
Intake System22
Figure 5 Intake System22
Intake Control System23
Cooling and Lubrication System23
Figure 6 Cooling and Lubricating System24
Optional Cooling Systems25
Water Cooled Systems25
Compact Soldered Heat Exchangers (CSHE)25
Figure 7 Water Cooled System25
Filters26
Cleaning CSHE26
Storage26
Exchanger Maintenance26
Heat Recovered Systems27
Heat Recovery in Air Cooled Screw-Type Compressors27
Figure 8 Heat Recovery System27
Figure 9 Installation of Heat Recovery System28
Technical Data29
Technical Specifications of the Compressor29
Table 3 Technical Specifications of the HDD Series29
Table 4 Technical Specifications of the HVD Series31
Plates Located on Your Compressor34
Plate on the Case34
Plate on the Oil Tank34
Figure 10 Plate on the Case34
Figure 11.A. Plate on the Oil Tank34
Plate on the Oil Tank (with ASME)35
Label on the Motor Lubricated36
Figure 12 Label on the Motor36
HDD-HVD Series P&ID Diagrams37
Transportation, Handling, Installation38
Transportation and Handling38
Transportation38
Handling38
Figure 13 Transportation of Compressor with Forklift38
Figure 14 Transportation of Compressor with Forklift39
Figure 15 Transportation of Compressor with Hanger39
Figure 16 Transportation of Compressor with Hanger40
Storage41
Long Term Storage41
Compressor Placement and Connections42
Figure 17 Compressor Placement in Room42
Table 5 Schedule of Equivalent Pipe Lengths44
Compressor Room Ventilation45
Electrical Connection45
HDD-HVD Series Cable Section Table46
Table 6 HDD-HVD Cable Sections46
Compressor Layout Plans48
Operation51
General51
Some Compressor Equipment51
Start-Up Procedure52
Daily Start Procedure53
Compressor Start-Up in Cold and after Long Shutdowns54
Figure 18 HDD 37 Model Overview54
General55
Failures, Reasons and Solutions56
Table 7 Failures and Solutions56
Maintenance64
Safety During Maintenance65
Periodical Maintenance Check List65
Daily Maintenance65
Every 125 Hours Operation65
Every 2000 Hours Operation or 6 Months66
Every 4000 Hours Operation or 12 Months66
Every 8000 Hours Operation or 12 Months66
Every 16000 Hours Operation or 24 Months67
Maintenance Instructions67
Compressor Oil67
Oil Replacement69
Replace the Oil in the Compressor at Suitable Intervals for the Oil Type Used69
Figure 19 Oil Filling69
Figure 20 Oil Discharge69
Oil Filter Replacement70
Figure 21 Oil Filter Replacement70
Panel Filter and Control Box Filter Replacement71
Figure 22 Panel Filter and Control Box Filter Replacement71
Air Filter Replacement72
Figure 23 Air Filter Replacement72
Figure 24 Air Filter Replacement72
Replacement of Separator Element73
Figure 25 Separator Element Replacement73
Figure 26 Separator Element Replacement74
Maintenance of the Cooling Radiator75
Figure 27 Radiator Cleaning75
Maintenance of the Separator Oil Return Line (Scavenge)76
Figure 28 Scavenge Line76
Intake Valve Maintenance Kit77
Thermostatic Valve Maintenance Kit and Thermal Element Replacement79
Minimum Pressure Valve Maintenance Kit Replacement80
Motor Maintenance81
Bearing Grease81
Coupling Replacement and Adjustment82
Figure 29 Coupling Replacement82
Table 8 Periodical Maintenance Schedule83
Table 9 Maintenance Records84

Hertz HDD 75 - Minimum Pressure Valve Maintenance Kit Replacement

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