Isuzu NPR 2008 Owner's Manual page 119

55702_Sec05-1_'08 08.2.12 9:49 AM Page 10
10. ENGINE COOLING SYSTEM — At 12 months or 10,000 miles
(16,000 km) intervals, wash radiator cap and filler neck with clean
water, pressure test system and radiator cap for proper pressure
holding capacity, tighten hose clamps and inspect condition of all
cooling and heater hoses. Replace hoses if cracked, swollen or
otherwise deteriorated.
Also each 12 months or 10,000 miles (16,000 km), clean exterior
of radiator core.
11. ENGINE COOLANT — Every 24 months or 30,000 miles (48,000
km), drain the engine coolant by opening the drain plug at the
bottom of the radiator core, flush and refill the engine cooling
system with a new 50/50 water / ethylene glycol solution.
12. EXHAUST SYSTEM — Check the complete exhaust system every
10,000 miles (16,000 km). Check body areas near the exhaust
system. Look for broken, damaged, missing, or out-of-position
parts. Also inspect for open seams, holes, loose connections, or
other conditions which could cause heat build-up at the rear body
floor pan, or could let exhaust fumes seep into the passenger
compartment. Dust or water in the cabin may indicate a leak in that
area. Required repairs should be made at once.
13. DPF(Clean Filter) — Clean the filter every 100,000 miles (160,000
km) or 3,000 hours whichever occurs first.
14. DPF(Pressure Difference Sensor 0 Point Adjustment) — Adjust
the sensor every 100,000 miles (160,000 km) or 3,000 hours
whichever occurs first.
15. DPF(Pressure Difference Sensor Hose) — Inspect the sensor
hose every 100,000 miles (160,000 km) or 3,000 hours whichever
occurs first.
16. FUEL LINE SYSTEM — Inspect the fuel tank, cap and lines for
damage which could cause leakage every 10,000 miles (16,000
km). Inspect fuel cap for correct sealing ability and indications of
physical damage. Replace any damaged or malfunctioning parts.
17. BRAKE LINING AND PAD FOR WEAR — Check drum brake lining
and disc brake pad for wear or cracks every 10,000 miles (16,000
k m ) . C h e c k b r a k e s ( i n c l u d i n g p a r k i n g b r a k e ) m o r e o f t e n i f
operating conditions or driving habits result in frequent braking.
Front disc brakes have built-in wear noise indicators which are
designed to make a high pitched squeal or cricket-like warning
sound when the brake pads are worn to the point where new pads
are needed.
When the truck is in motion, the sound may be constant or it may come
and go. Pressing the brake pedal firmly may cause the sound to stop.
Have the brake linings or the brake pads replaced by your
authorized dealer as immediately as possible after the warning first
becomes evident.
Failure to do so can result in expensive damage to the brake
system or a serious accident.
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