Periodic maintenance using genuine Atlas Copco Service Kits is critical for maintaining optimal operating pressure, preventing overheating, and extending the service life of industrial piston/reciprocating air compressors.
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| Matikan kompresor dan drain udara didalam tangki, kemudian lepaskan penutup filter dan penutup kipas. |
Over extended operating hours, high thermal friction and mechanical stress cause degradation of the disc valves, wear on piston ring seals,
and breakdown of compressor lubricating oil. Performing a complete overhaul of these wear items restores volumetric efficiency and prevents catastrophic mechanical failure. |
| Menggunakan kain lembab, bersihkan ruang saringan dan penutup dan ganti seal |
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ganti disk katup outlet baru, pelindung dan pegas .
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Pasang disc valve yang
baru
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Pasang pegas yang
baru
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| Ganti Filter udara dengan yang baru |
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Bersihkan penutup silinder, rumah disk valve,
rumah filter dll dan periksa semua bagian.
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Bersihkan penutup silinder, rumah disk valve,
rumah filter dll dan periksa semua bagian.
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Lepaskan penutup kepala silinder.
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🔍 Key Indicators Requiring Service Kit Installation
When an Atlas Copco reciprocating compressor requires a valve, seal, or oil overhaul, it exhibits specific operational symptoms:
Low Discharge Pressure / Slow Tank Fill Time: Damaged or carbonized disc valves allow compressed air to backflow into the suction stroke.
Continuous Air Discharge from Intake Filter: Worn or warped inlet disc valves fail to seal, blowing air back out through the intake filter housing.
Excessive Oil Carryover in Compressed Air Line: Worn piston ring seals allow crankcase oil to blow past the piston into the compression chamber (oil carryover).
Elevated Operating Temperatures & Crankcase Noise: Oxidized or degraded compressor oil loses viscosity, increasing friction and operating temperatures.
🛠️ Complete Atlas Copco Service Kit Replacement Procedure
[ SAFETY FIRST: Lockout/Tagout (LOTO) & Vent All Air Tank Pressure ]
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┌─────────────────────────────────┼─────────────────────────────────┐
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[ 1. DISC VALVE REPLACEMENT ] [ 2. RING SEAL REPLACEMENT ] [ 3. OIL DRAIN & REFILL ]
• Remove Cylinder Head • Unbolt Cylinder Barrel • Drain Warm Crankcase Oil
• Replace Valve Disks & Springs • Remove Worn Piston Rings • Flush Crankcase Sump
• Clean Carbon Deposits • Install New Compression Rings • Refill Atlas Copco Oil
Step 1: Disc Valve Assembly Replacement (Penggantian Disc Valve)
The disc valve assembly controls air intake and exhaust cycles within the cylinder head. Carbon buildup and spring fatigue are the leading causes of valve sealing failure.
Power Isolation & Pressure Relief: Shut off electrical power, disconnect the main circuit breaker, and pull the safety relief valve to completely depressurize the receiver tank ($0\text{ bar / 0 PSI}$).
Cylinder Head Disassembly:
Unbolt the air intake manifold and delivery pipe fittings.
Remove the cylinder head bolts in a cross-star pattern to prevent head warpage.
Lift off the cylinder head to access the valve plate assembly.
Servicing the Valve Plate:
Remove worn disc valves (valve reeds), buffer plates, and valve springs.
Clean carbonized oil crust from the valve seat ports using Isopropyl Alcohol (IPA) and a soft brass wire brush. Do not gouge or scratch precision mating surfaces.
Installing New Components:
Fit the new disc valves, guide pins, and springs from the Atlas Copco service kit.
Replace all copper sealing washers and head gaskets. Torque cylinder head bolts evenly to manufacturer specifications using a torque wrench.
Step 2: Piston Ring Seal Replacement (Penggantian Ring Seal)
Piston rings maintain the pressure seal between the piston body and the cylinder wall while preventing crankcase oil from entering the air stream.
Cylinder Removal: Unbolt and carefully lift the cylinder barrel off the crankcase block.
Old Ring Removal: Use a piston ring expander tool to remove the old compression rings and oil scraper rings from the piston grooves.
Groove Cleaning & Inspection:
Inspect the cylinder wall bore for deep scoring or ridge wear.
Clean carbon deposits out of the piston ring lands/grooves using a soft scraper.
Installing New Ring Seals:
Install the new oil control ring first, followed by the compression rings using a ring expander.
Stagger Ring Gaps: Rotate the ring gaps $120^\circ$ to $180^\circ$ apart from one another. Never align ring gaps directly over each other to prevent blow-by.
Compress the new rings using a piston ring compressor tool and carefully slide the cylinder barrel back over the piston. Always replace the cylinder base gasket.
Step 3: Compressor Oil Replacement (Penggantian Oli Atlas Copco)
Using genuine Atlas Copco compressor lubricant (e.g., Piston Fluid / Roto-Inject Fluid) guarantees proper thermal dissipation and prevents carbon varnish formation.
Drain Old Oil: Warm up the compressor for 5 minutes prior to servicing so the oil flows freely. Place a drain pan under the crankcase drain plug and unscrew it to drain old, degraded oil completely.
Flush & Clean Crankcase: Check the drained oil for metallic debris. Clean the magnetic drain plug tip and reinstall it securely with a new copper sealing washer.
Refill with Fresh Atlas Copco Lubricant:
Remove the oil filler breather cap.
Pour fresh Atlas Copco mineral or synthetic compressor oil into the crankcase sump.
Monitor the oil sight glass: fill until the oil level reaches the center red dot / 3/4 mark on the sight glass indicator. Do not overfill, as excess oil leads to heavy oil carryover in discharge air.
📅 Recommended Atlas Copco Maintenance Intervals
| Service Task | Service Interval | Recommended Tool / Kit Component |
| Compressor Oil Change | Every 500 – 1,000 Hours (or 6 Months) | Atlas Copco Approved Piston Lubricant |
| Disc Valve & Gasket Replacement | Every 2,000 – 3,000 Hours (or Annually) | Atlas Copco Valve Service Kit (Discs, Springs, Gaskets) |
| Piston Ring Seal Replacement | Every 4,000 – 6,000 Hours (or Major Overhaul) | Atlas Copco Ring Seal Overhaul Kit |
📌 Master Equipment Maintenance & Repair Quick Reference Table
| Equipment / System | Issue / Fault | Primary Cause | Corrective Maintenance Action |
| Atlas Copco Compressor | Low pressure / Oil in air line | Worn disc valves, blow-by ring seals, or degraded oil | Install Atlas Copco Service Kit: replace disc valves, stagger ring gaps, and refill fresh lubricant |
| Cat & Mice Arcade | Error 1-1 (Startup Fail) | Broken internal wire inside motor input cable | Test harness continuity while flexing wires; cut, splice, and solder damaged segment |
| Happy Journey | No Signal / No Display | CPU board short circuit caused by dust buildup | Deep clean mainboard with compressed air & 99% IPA; clean RAM/CF card contacts with eraser |
| Happy Frog Arcade | Err 01 – Err 04 (Lift Fail) | Mechanical jam, burnt solenoid coil, or position sensor failure | Clear jam, test solenoid coil resistance ($5\text{--}35\Omega$), and clean position sensors with IPA |
| Happy Frog Arcade | ERR 03 / E3 (Ticket Error) | Empty ticket roll, paper jam, or dirty notch sensor | Reload tickets, clear chute jam, and clean optical sensor with IPA swab |
| Happy Kangaroo | Score stuck at 00 | Sensor wire socket disconnected due to cabinet vibration | Re-seat JST connector, clean pins, and secure w/ zip-ties & hot melt glue |
| Happy Forest | Missed Scores / Ticket Error | IR sensor lenses coated in paper dust & ambient grime | Wipe IR TX-RX lenses using 70%+ Isopropyl Alcohol & microfiber cloth |
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