JLG X23J - X700AJ Service Manual - Manual (Page 40)

SECTION 3 - CHASSIS & TURNTABLE
3121448 – JLG Lift – 3-13
TECHNICAL INFORMATIONS
PRODUCT DESCRIPTION
The TRASMITAL BONFIGLIOLI gear motors of the series
described in this manual are designed and built for appli-
cation as track drive for crawled machines equipped with
open loop hydraulic circuit.
The unit includes:
Hydraulic motor
Orbit fixed displacement motor including:
- Brake valve, this valve is installed for drive applications
on tracked vehicles such as mini excavators and similar
with open loop circuits; -Internal brake port directly con-
trolled by the motor supply ports.
Planetary gearbox
Planetary gearbox, 1 stage, rotating housing type
including:
- Negative parking brake hydraulically actuated.
The track drive functional scheme is shown in the sketch
below.
Figure 3-21.