JLG 45e Service Manual User Manual
Page 67
SECTION -
3120861
– JLG Lift –
-41
5.
Armature (2) and coil springs (10) can be removed
and set aside.
Inspection.
1.
Inspection the friction plates (5, 6) and the mating
surfaces on the armature (2) and mounting plate (4)
for wear and/or damage.
2.
Examine the coil springs (10).
3.
Examine the friction plates and the shaft (3) for wear
and/or damage to the spline.
4.
Examine the pole faces of the magnet (1) and the
armature (2) for bruises, swellings or damage. Any
bruises, swellings or damage should be stoned flat.
5.
Examine input and output splines of shaft for wear
and/or damage.
6.
Check ball bearing (11) for axial float and/or wear.
NOTE: It is essential when replacing plates (5, 6, 7) that
spacers (8) are also replaced.
Assembly.
1.
Clean all parts thoroughly.
2.
Reverse disassembly procedure above, taking par-
ticular care with the assembly sequence of plates (5,
6, 7).
NOTE: Assemble plate (6) with two center-punches facing
towards mounting plate (4).
3.
If new plates have been fitted, then new spacers will
have to be adjusted for air gap of 0.014 - 0.024
inches (0.35 - 0.60 mm) as shown in Figure 2-35.
4.
After checking air gap, connect power supply.
5.
Switch on power supply and ensure brake fully
releases.
6.
The brake can be adjusted for friction plate wear by
removing spacers (8) and machining them to main-
tain the correct air gap. Length of all three spacers
should be within 0.001 in. (0.025 mm).