Status · Hari ke-8 CMStatus · Day 8 CM

EX-04 Hitachi EX1200 · Pit North Bench 3 · breakdown 22/4 14:00broke down 22/4 14:00

Hydraulic pump PN 4D4GH88A gagal total. Downtime 192 jam ke 30/4, revenue loss est. IDR 540 juta. Spare part tiba 30/4 16:00 dari Singapore via United Tractors. Repair Pak Kusno mulai 1/5 07:00.Hydraulic pump PN 4D4GH88A failed completely. 192 h downtime to 30/4, est. revenue loss IDR 540 M. Parts arrive 30/4 16:00 from Singapore via United Tractors. Mr. Kusno starts repair 1/5 07:00.

Umur operasiOperating age

18.240 h

unit berusia 4,2 tahun4.2 years old

MTBF 12 bln

156 h

target 240 · gap 84 jam240 target · gap 84 h

Availability YTD

77,8%

bulan ini drop ke 42%this month dropped to 42%

Cost YTD

IDR 328 jt

PM 78 + CM 250 jtPM 78 + CM 250 M

DTC bulan inithis month

3 kritis · 7 hi · 4 med3 critical · 7 hi · 4 med

Siklus repairRepair cycle

3 × / YTD

trend naik · perlu overhaulrising trend · overhaul due

4 Parameter Telematics — 30 Hari4 Telematics Parameters — 30 Days

breakdown titik merahred point = breakdown

Tekanan pompa hidrolik (psi)Hydraulic pump pressure (psi)

baseline 3.600 · drop 14/4 ↓ warning levelbaseline 3,600 · dropped 14/4 ↓ warning

2.840 psi

Suhu oli hidrolik (°C)Hydraulic oil temp (°C)

baseline 68 · spike 18/4 ke 88 °Cbaseline 68 · spiked 18/4 to 88 °C

86 °C

Vibrasi (mm/s RMS)Vibration (mm/s RMS)

baseline 2,8 · trend naik bertahapbaseline 2.8 · steady rise

5,4 mm/s

Fuel rate (L/jam)Fuel rate (L/h)

baseline 58 L/h · naik = load kerja lebihbaseline 58 L/h · rising = harder work

68 L/h

Root Cause Analysis — Post-mortem FoxelRoot Cause Analysis — Foxel Post-mortem

8 hari peluang pencegahan terlewat8-day prevention window missed

Pressure drop linear dari 14/4 adalah signature klasik bearing pompa hidrolik memasuki fase failure. Vibrasi +30% dan temp spike 18/4 memperkuat diagnosa. KOMTRAX alert threshold saat ini (3.000 psi) terlalu rendah — baru trigger 20/4, hanya 48 jam sebelum breakdown. Rekomendasi: lower threshold ke 3.300 psi + cross-reference dengan vibrasi trend. Next excavator (EX-05) threshold sudah di-update otomatis. The linear pressure drop from 14/4 is a classic hydraulic-pump bearing failure signature. The +30% vibration and 18/4 temperature spike confirm the diagnosis. Current KOMTRAX alert threshold (3,000 psi) is too low — it only fired on 20/4, just 48 h before breakdown. Recommendation: lower threshold to 3,300 psi + cross-reference with vibration trend. The next excavator (EX-05) already has the updated threshold.

DTC Code History · 30 haridays

Tgl	Code	Deskripsi	Sev
22/4 14:00	P0016A	Hyd pump failure totalHyd pump total failure	CRIT
21/4 08:30	P0016D	Pressure critical lowPressure critical low	CRIT
20/4 15:22	P0016P	Pressure low warningPressure low warning	HI
19/4 11:18	P0022T	Temp oil highOil temp high	HI
18/4 13:40	P0022T	Temp oil spike 88°COil temp spike 88°C	CRIT
17/4 10:15	V0085B	Vibration bearing	HI
15/4 16:02	V0085	Vibration anomaly	MED
14/4 09:48	P0016	Pressure driftPressure drift	MED
10/4 08:30	U0100	CAN bus intermittent	MED
9/4 ...	+ 5 kode lainnya (semua low sev)+ 5 more codes (all low sev)

Timeline EventEvent Timeline

✓

15/3/2026 · PM 500-hr

Oil change, filter replace. Semua parameter normal.Oil change, filter replace. All parameters normal.

14/4/2026 · Drift mulaiDrift begins

Pressure -100 psi dari baseline · severity MED · belum trigger alertPressure -100 psi from baseline · severity MED · alert didn't fire

18/4/2026 · Temp spikeTemp spike

Oil temperature 88°C (normal 68°C) · bearing sudah degrade signifikanOil temperature 88°C (normal 68°C) · bearing significantly degraded

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20/4/2026 15:22 · Alert firedAlert fired

Pressure tembus 3.000 psi threshold · SMS ke Pak Dwi · tapi sudah terlambatPressure crossed 3,000 psi threshold · SMS to Mr. Dwi · but too late

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22/4/2026 14:00 · BreakdownBreakdown

Pompa hidrolik total failure di tengah shift. Pak Sudarto trigger replan (Scene 9 Modul 1).Total hydraulic pump failure mid-shift. Mr. Sudarto triggered replan (Module 1 Scene 9).

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