JLG 4394RT Service Manual - Manual (Page 78)

SECTION 3 - CHASSIS, PLATFORM & SCISSOR ARMS
3-42 – JLG Lift – 3121249
Tool List
The following specialized tools are used to assemble this
unit. The tool diagrams included in this manual are
intended for the customer who may wish to have a tool
made. All tools exist as one piece and must be made from
mild steel All dimensions are given in inches.
NOTE: In order to improve tool life, tools may be carburized
and hardened. If this is done, however, the tools
must be ground on all surfaces labeled with a "G" on
the tool diagram.
1. T-118126 SEAL PRESSING TOOL for SEAL (1B).
2. T-138903 ASSEMBLY PRESSING TOOL for CUP
(1C)
3. T-140433 ASSEMBLY PRESSING TOOL for CUP
(1E)
4. T-109691 ASSEMSLY PRESSING TOOL for CONE
(1F)
* These tools are for specific seals, cups or cones. There
is a specific tool for each cup and cone.
Re-Aligning Torque Hub Input Coupling
The following procedure applies to torque hubs with inte-
gral brakes.
EQUIPMENT REQUIRED
1. Hydraulic power supply (hand pump) capable of
producing 200 psi (13.8 bar).
2. Hydraulic fittings to adapt hydraulic supply to brake
release port on hub.
PROCEDURE
1. Using appropriate fittings, connect a line from the
hydraulic power supply to the brake port.
2. Pressurize the brake release port 155 to 200 psi
(10.6 to 13.8 bar) to release the brake.
3. Verify that the brake is released by rotating the input
coupling or hub spindle.
4. Once the brake is released, the input coupling will
be free to re-align with the drive motor.