Swing Valve; Swing Motor By-Pass Valve; Electric Motor; Dust Cleaning - JLG TOUCAN 10E Service And Maintenance Manual

Swing Valve

This 4-Way, 2-Position Solenoid Valve (12) is supplied
each time a Swing movement is controlled.

Swing Motor By-Pass Valve

This Needle Valve (17) allows swing motor by-passing for
manual swinging operation. In normal operation, this
valve must be closed (fully screwed in).

Electric Motor

Dust Cleaning:

Due to a possible built-up of dust from brush wear inside
the pump motor cover around the brushes and armature
under heavy usage, it is recommended to perform this
dust cleaning task on an annual basis. Use clean, oil free,
compressed air.
1. Disconnect the battery plug.
2. Remove the protection cover from the motor.
3. Blow any accumulated brush dust around the
brushes and armature commutator.
4. Check brushes for wear, replace if necessary.
5. Once complete, reassemble for operation.
Figure 7-8. Dust Cleaning
Brush Wear Check (Qty 4):
Replace brushes that are worn below their usable length
(10 mm (0.40 in.)), show signs of uneven wear or signs of
overheating, such as discolored brush shunts and brush
springs. Brushes should always be replaced in complete
sets of four. Use identical replacement parts; do not sub-
stitute brush grades as the brushes are matched to the
motor type and application to provide the best service.
Substituting brushes of the wrong grade can cause pre-
mature commutator failure and excessive brush wear.
Brush Removal:
NOTE: No hydraulic power unit connections, hydraulic or
electrical need to be disconnected.
31210090
1. Disconnect battery plug.
2. Loosen the two bolts securing the hydraulic power
unit. Lift and slide the power unit.
Figure 7-9. Moving Hydraulic Power Unit
Figure 7-10. Motor Brushes
3. Remove the protection cover from the motor (1).
4. Remove the brush terminal screw (2).
5. Lift the spiral spring (3) and remove the brush (4)
from its housing.
6. Repeat previous steps for each brush (Qty: 4).
Brushes Installation:
1. Lift the spiral spring (3) and slide the brush (4) into
its housing.
2. Attach the brush terminal end to the terminal post
using the terminal screw (2).
3. Repeat previous steps for each brush.
4. Install the protection cover (1).
5. Secure the hydraulic power unit to the machine, as
originally installed.
– JLG Lift –
SECTION 7 - HYDRAULICS
7-5