12 months + 15 days ( duration is
6 working days)
IOH: 36 months + 1 month or 4 lakh kms (6 lakh for WAP-1 loco) whichever is earlier.(duration is 9 working days)
POH:6 years + 3 months or 8 lakh kms (12 lakh for WAP-1 loco) whichever earlier (duration is 24 days)
.
WAP4
.
Trip inspection :After 3000 kms or one trip whichever later.
AOH: 18 months + 15 days (duration is 6 days)
IOH: 36 months + 1 month or 6 lakh kms whichever earlier.(duration is 9 days)
POH: 6 years + 3 months or 12 lakh kms whichever is earlier. (24 working days)
.
WAG5 (fit with TAO traction motors)
.
Trip inspection: 15 days
AOH: 18 months + 10 days (Duration 6 days)
IOH: 54 months + 1 month or 6 lakh kms whichever earlier. (duration is 9 days)
POH: 9 years + 3 months or 12 lakh kms whichever is earlier. (duration is 28 days)
.
WAG-5 (TAOchi variant), WAG-5H & WAG-7 locos
.
Trip inspection: 20 days
AOH: 18 months + 10 days ( duration 6 days
IOH: 54 months + 1 month or 6 lakh kms whichever is earlier.(duration 9 days)
POH: 9 years + 3 months or 12 lakh kms whichever is earlier(duration is 28 days)
.
3phasers:
.
WAP5/WAP7 locos
.
Trip inspection: 3000 kms or one trip, whichever is later
MOH:18 months (Duration 6 days)
IOH: 4.5 years + 6 months or 12 lakh kms. whichever earlier.
duration
WAP-7 - 11 days
WAP-5 - 20 days
POH: 9 years + 6 months or 24 lakh kms. whichever earlier.
Duration 28 days
.
WAG 9/9H (including i variants)
.
Trip inspection: 45 days
MOH: 18 months( Duration 6 working days / 8 working days for 2nd MOH)
IOH:6 years + 6 months or 12 lakh kms. whichever is earlier.(duration 11 days)
POH: 12 years + 6 months or 24 lakh kms. whichever is earlier. (Duration 28 days)
AOH:Annual Over Haul
IOH:Intermediate Over Haul
MOH:Maintenance Over Haul
POH:Periodic Over Haul
2nd MOH takes more time because additional tasks are performed in 2nd MOH
Suggest corrections if needed
Source:
RDSO Page 