JLG X20JP - X600AJ Service Manual - Manual (Page 147)

SECTION 3 - CHASSIS & TURNTABLE
3121623 – JLG Lift – 3-123
The fans system is managed by the BMS that controls a
timer (T1).
When the internal temperature is too high, the BMS feed
the timer coil that sends feed to the two fans for a set time.
After this time, if temperature is still high, the timer is acti-
vated again.
Figure 3-54. Timer (T1)