MODEL 330 OPERATOR'S MANUAL - Peterbilt Motors Company

Air System
Scheduled Maintenance
Table 11 Air System Scheduled Maintenance
Preventive Maintenance
Use Table 11, ”Air System Scheduled Maintenance,” to
schedule service operations and air system tests.
MAXIMUM INTERVALS
TEST
EACH WEEK
EACH MONTH
(10,000 mi) (16,000
km)
THREE MONTHS
(25,000 mi) (40,000
km)
SIX MONTHS
(50,000 mi) (80,000
km)
Air Compressor
•
Air Governor
•
System Leakage
•
Dual Air Brake Treadle Valve • – or – •
Hand–Operated Trailer Brake Valve • – or – •
Tractor Parking Valve
•
Parking Brake Valve
•
Trailer Air Supply
•
Tractor Protection Valves
Relay Valve
Spring Brake Inversion Valve
Automatic Limiting Valve
Single Check Valves
Double Check Valves
Stop Light Switch
Low–Pressure Wig Wag
Low–Pressure Switch
Automatic Drain Valve
Safety Valve
Quick Release Valve
Manual Drain Valve
•
•
•
•
•
•
•
•
ANNUALLY
(100,000 mi)
(160,000 km)
•
•
•
•
•
– 164 – PB1318 3/01 Model 330