Mitsubishi S12R-Y1PTA User Manual

7-4
Chapter 7 MAINTENANCE SCHEDULE
Periodic maintenance chart for emergency engine
Table 7-2 Periodic maintenance chart for emergency engine
Interval and Service item
Refer-
ence
page
Every week
Engine external - Inspect (Check for leakage of fuel, oil and coolant) 3-7
Fuel tank oil level - Check*1 3-8
Engine oil level - Check 3-9
Coolant level - Check 3-10
Water leakage of air cooler - Inspect -
Operating the engine for maintenance (operate the engine under no load for
5 to 10 minutes)
Check for ease of starting, color of exhaust smoke, abnormal vibration,
abnormal noise, abnormal smell and gauge indication (oil pressure gauge,
coolant temperature gauge, oil temperature gauge, exhaust temperature
gauge, tachometer, etc.)
-
Every month
Engine oil for mixing of fuel and water - Inspect 8-12
Fuel control link - Check 3-10
Battery electrolyte level - Inspect*1 3-6
Conducting Engine Maintenance Operation (Operate the engine with more
than 50 % load for 15 to 30 minutes)
Check for ease of starting, color of exhaust smoke, abnormal vibration,
abnormal noise, abnormal smell and gauge indication (oil pressure gauge,
coolant temperature gauge, oil temperature gauge, exhaust temperature
gauge, tachometer, etc.)
Check fuel injection pump and governor rack movement
-
Damper - Inspect 8-3
Every 6 months
Checking LLC concentration level in the coolant *2
Cleaning the inside of the coolant tank*1 -
Every 1 year
Basic engine
Belt and belt tension - Inspect and Adjust 8-2
Bolts and nuts on the engine - Check and Retighten *2
Valve clearance - Inspect and Adjust
(Check valve mechanism at the same time.)
*2
Inspecting the vibration-isolating rubber*1 *2
Foundation bolts - Inspect*1 *2
Couplings - Inspect or Replace*1 *2
Fuel system
Fuel tank - Drain water*1 8-5
Water separator - Drain water*1 *2
Fuel injection nozzle spray condition and Spray pressure
- Inspect and Adjust
*2
Fuel injection timing - Inspect and Adjust *2
Fuel pipe - Inspect 8-8
Engine
Lubricating sys-
tem
Oil pipe - Inspect 8-12
Engine oil properties - Analyze *2
Engine oil pressure (Maintenance operation) - Inspect
and Adjust
*2

Mitsubishi S12R-Y1PTA Specifications

General

Brand	Mitsubishi
Model	S12R-Y1PTA
Category	Engine
Language	English