DOB 1300 -1556 | X3-45 Commuter PA-1648 Maintenance Manual First release Oct 2020
1 Accessories air filter 23 Engine oil filter
2 Accessories air tank fill valve 24 Allison transmission oil dipstick
3 Steering drag link 25 Engine coolant surge tank
4 Height control valve (front) 26 Coolant filter & conditioner
5 Steering tie rod 27 Engine air filter restriction indicator
6 Accessories air tank 28 Engine air filter
7 Steering column U-joints 29 DEF tank
8 Steering knuckle pins 30 DEF pump
9 Steering damper cylinder 31 Engine oil dipstick and filler tube
10 Secondary air tank 32 Diesel particulate filter (DPF)
11 Kneeling air tank 33 SCR catalytic converter
12 Air dryer 34 Diffuser assembly
13 Height control valve (rear) 35 Diesel fuel tank
14 Wet air tank 36 Power steering pump & fuel pump
15 Primary air tank 37 Air compressor
16 Differential 38 R.H. side alternators
17 Propeller shaft 39 L.H. side alternator
18 Transmission 40 Emergency / parking brakes overrule control valve
19 Starter 41 Twin Haldex condenser/separator
20 Primary fuel filter/Davco Fuel Pro 382 42 Radiator core & charge air cooler (CAC)
21 Secondary fuel filter 43 Brake caliper
22 Power steering fluid tank 44 Steering gear
IMPORTANT NOTE
Refer to the manu
facturers documentation included in this maintenance manual for specific
manufacturer’s maintenance requirements.
A Lubrication and Servicing Schedule is included in this section to emphasize key service and
lubrication points on the vehicle. Other maintenance requirements and specific instructions on how to
check and service different components are covered in their respective sections in this maintenance
manual.