STSH
⚠ Warning Before performing any maintenance: stop the compressor, close the air outlet valve, press Emergency Stop, disconnect power at the mains, and vent the separator tank by loosening the oil filler plug 1–2 turns. Confirm zero pressure before opening any connection.
▲ Attention Do not reset maintenance warnings on the AirMASTER FORM controller until the corresponding maintenance has been physically completed. Resetting without service voids warranty coverage for related damage.
Replacement Schedule — STSH Models
"R" = Replace. All intervals are whichever comes first (hours or calendar time).
| Component | Interval | 2,000 h | 8,000 h | 16,000 h | 20,000 h |
|---|---|---|---|---|---|
| Oil (2)(3)(4) | 2,000 hrs or 6 months | R | R | R | R |
| Oil Filter Element (1)(3)(4) | 2,000 hrs or 6 months | R | R | R | R |
| Air Filter Element (1)(3)(4) | 2,000 hrs or 6 months | R | R | R | R |
| Cabinet Air Suction Filters (1)(4) | 2,000 hrs or 6 months | R | R | R | R |
| Separator Element (1)(3)(4) | 2,000 hrs or 6 months | R | R | R | R |
| Oil Filling Plug O-ring (4) | 4,000 hrs or 6 months | R | R | R | |
| Thermostatic Valve Kit (4) | 8,000 hrs or 12 months | R | R | R | |
| Minimum Pressure Valve Service Kit (4) | 8,000 hrs or 12 months | R | R | R | |
| Suction Control Valve Service Kit (4) | 16,000 hrs or 24 months | R | R | ||
| Solenoid Valve (4) | 16,000 hrs or 24 months | R | R | ||
| Hydraulic Hoses (4) | 16,000 hrs or 24 months | R | R | ||
| Pneumatic Hoses (4) | 16,000 hrs or 24 months | R | R | ||
| Coupling Elastomer (4) | 16,000 hrs or 24 months | R | R | ||
| Pressure Transmitter (4) | 16,000 hrs or 24 months | R | R | ||
| Thermometer Sensor (NTC) (4) | 16,000 hrs or 24 months | R | R | ||
| Safety Valve (4) | 16,000 hrs or 24 months | R | R | ||
| Airend Sealing Kit (4) | 16,000 hrs or 24 months | R | R | ||
| Airend General Maintenance (Revision Kit) (4) | 20,000 hrs or 30 months | R | |||
| Electric Motor Bearings (4) | 20,000 hrs or 30 months | R | |||
| Electric Motor Greasing (if nipple present) | See motor nameplate for grease type, quantity, and interval | ||||
(1) More frequently in dusty or unclean environments | (2) Shorten interval in dusty, high-humidity, or very hot conditions | (3) Consumable — not covered by warranty | (4) Whichever threshold (hours or calendar) is reached first
Ongoing Inspection Tasks
| Task | Frequency |
|---|---|
| Oil level check | Before every start |
| Separator scavenge line oil flow check | After every start |
| Condensation drain from separator (oil) tank | Weekly (after ≥1 day standby) |
| Abnormal vibration check | After every start |
| Abnormal noise check | After every start |
| AirMASTER FORM controller function check | After every start |
| Air filter element cleaning | Every 1,000 hours |
| Air and oil pipe / hose leak check | Every 2,000 hours |
| All electrical wiring inspection | Every 2,000 hours |
| Scavenge line strainer filter cleaning | Every 2,000 hours |
| Cabinet interior cleaning | Every 2,000 hours |
| Electric motor cooling fin cleaning | Every 2,000 hours |
| V-belt tension / coupling elastomer check | Every 2,000 hours |
| Axial fan blade cleaning | Every 2,000 hours |
| Hydraulic and air hose inspection | Every 2,000 hours |
| Separator tank inspection (corrosion, damage) | Every 2,000 hours |
| Grounding — electrical network | Every 2,000 hours (or after new installation) |
| Grounding — separator tank | Before first start; every 2,000 hours |
| Electric cabinet interior cleaning | Every 2,000 hours |
| Air-oil cooler cleaning | Every 4,000 hours |
| All connection bolt torque check | Every 4,000 hours |
Related Articles
- Oil & Oil Filter Replacement
- Air Filter & Separator Element Replacement
- Electric Motor, Cooler & Safety Valve Maintenance
- V-Belt Inspection & Replacement
- Spare Parts Ordering
For service support or parts, contact South-Tek Systems: (910) 415-1880 or support@southteksystems911.zendesk.com