JLG sky trak mmv Service Manual page 63

5. Use the handle (5) on the emergency towing valve to
pump pressure into the system. Watch the pressure
gauge (6) while pumping pressure into the park
brake system. DO NOT exceed 650 psi (45 bar).
CAUTION:
(45 bar) when pressurizing the park brake.
Applying too much pressure may damage the
brake seals.
5
4
6
6. Working through the level plug hole (7), carefully use
a screwdriver to spread the brake discs apart.
IMPORTANT: DO NOT damage the surfaces of the
brake discs when spreading the brake discs.
7. Using a feeler gauge, check the gap (8) between the
brake discs. If the gap is greater than .26"
(6,75 mm), replace the brake discs.
Note: If the brake discs are worn beyond .26"
(6,75 mm), the brake disc must be replaced on both
sides of the axle at the same time.
8. Repeat Steps 6-7 for the other side of the axle.
Model MMV Rev. 12/04
General Information, Specifications and Maintenance
DO NOT exceed 650 psi
7
9. If the brake wear is within specifications; continue
the axle oil change procedure at Step 8 (refer to
Section 2.13.11, b. Axle Oil Change ).
OM1051
b. Rear Axle
IMPORTANT: DO NOT damage the surfaces of the
brake discs when spreading the brake discs.
1. Working through the level plug hole (7), carefully use
a screwdriver to spread the brake discs apart.
2. Using a feeler gauge, check the gap (8) between the
brake discs. If the gap is greater than .167"
(4,25 mm), replace the brake discs.
Note: If the brake discs are worn beyond .167"
(4,25 mm), the brake disc must be replaced on both
sides of the axle at the same time.
3. Repeat Steps 1 and 2 for the other side of the axle.
MT2850
4. If the brake wear is within specifications; continue
the Axle Oil Change procedure at Step 8 (refer to
Section 2.13.11, b. Axle Oil Change ).
8
MT2840
2.47