TM 55-4920-328-13
1. Manual Shutoff Valve
13. Heat Exchanger
2. Relief and Bypass Valve
14. Oil Quantity Probe Connector
3. Check Valve
15. Fill Cap, Vent and Strainer
4. Quick-Disconnect
16. Oil Supply Line
5. Sight Gage
17. Gearbox Vent Return
6. Lubricating Oil Unit
18. Oil Return Line
7. Motor and Pump Assembly
19. Oil Bypass Return Line
8. Drain Plug
20. Immersion Heater
9. Temperature Regulating
Valve and Probe
10. Manual Selector Valve
11. Filter
12. Back Pressure Regulator
Figure 1-12. Test Trailer Oil System.
1-16
