Thermo King SB-210, Manual

Page: 21 / 159

21
Maintenance Inspection Schedule
Pretrip Every
1,500
Hours
Every
3,000
Hours*
Annual/
4,500
Hours
Inspect/Service These Items
Microprocessor
• Run Pretrip Test (see “Pretrip Tests” in the Operating Manual).
Engine
• Check fuel supply.
• Check engine oil level.
• • • • Inspect belts for condition and proper tension (belt tension tool
No. 204-427).
• • • • Check engine oil pressure hot, on high speed (should display “OK”).
• • • • Listen for unusual noises, vibrations, etc.
• Check air cleaner restriction indicator (change filter when indicator
reaches 25 in.). Replace EMI 3000 air cleaner element (see “EMI 3000
Air Cleaner Assembly” on page 93) at 3,000 hours or two years
(whichever occurs first) if indicator has not reached 25 in.
• • • Drain water from fuel tank and check vent.
• • • Inspect/clean fuel transfer pump inlet strainer (prefilter).
• • •
Check and adjust engine speeds (high and low speed).
• • •
Check condition of drive coupling bushings per Service Bulletin T&T 171.
• Check engine mounts for wear.
• Replace fuel filter/water separator.
• Change engine oil and oil filter (hot). Requires oil with API Rating CG-4 or
better (ACEA Rating E2-96 for Europe).
— Change ELC (red) engine coolant every 5 years or 12,000 hours. Units
equipped with ELC have an ELC nameplate on the expansion tank (see
page 77).
— Test fuel injection nozzles at least every 10,000 hours.
Electrical
• • • Inspect battery terminals and electrolyte level.
• • • Inspect wire harness for damaged wires or connections.
• • • • Check operation of damper door (closes on defrost initiation and opens
on defrost termination).
• Inspect alternator wire connections for tightness.
• Inspect electric motor, replace bearings yearly or every 6,000 hours.
*3,000 hours or two years, whichever occurs first.