Nexen TL50A/4-E 803017 - Manual (Page 11)

11 FORM NO. L-21174-E-1209
Refer to Figures 7 & 8.
1. Shut off machine and air supply to the Torque Limiter.
2. Disconnect the Torque Limiter from the air supply by
removing the Quick Exhaust Shuttle Valve and the
3-Way N.C. Solenoid Valve.
3. Remove the Torque Limiter from the machine.
Drive Flange
Assembly
(Item 19)
Cylinder/Piston
Assembly
(Items 8 and 9)
Cylinder/Piston
Assembly
(Items 8 and 9)
Hub
(Item 7)
Rotary Seal
(Item 15)
Retaining Ring
(Item 6)
Retaining Ring
(Item 6)
FIGURE 7
FIGURE 8
4. Remove the Retaining Ring (Item 6) from the Hub (Item
7) on the Drive Flange Assembly (Item 19) end of the
Torque Limiter.
5. Supporting Drive Flange Assembly (Item 19), press
Hub (Item 7) and Cylinder/Piston Assembly out of the
Drive Flange.
6. Remove the Rotary Seal (Item 15) from the Drive Flange
Assembly.
NOTE: Rotary seal style/location has changed (except
for in TL20A-E models). If Torque Limiter has old rotary
seal design, seal is located in the Cylinder/Piston
Assembly (Items 8 & 9). Refer to Table 6 and Figure 6 to
determine what style rotary seal is used on your product.
All other procedures are identical between models.
7. Remove Retaining Ring (Item 6) from the Hub (Item 7)
on the Cylinder/Piston end of Torque Limiter.
8. Supporting the Cylinder/Piston Assembly, press the
Hub (Item 7) out of the Cylinder/Piston Assembly.
PARTS REPLACEMENT
TORQUE LIMITER REMOVAL AND DISASSEMBLY
CAUTION
Correct alignment of Torque Limiter internal
components is critical for proper operation
of the Torque Limiter. Before disassembly,
mark Hub, Cylinder, and Drive Flange with
chalk alignment marks to ensure correct
alignment of internal components when
reassembling Torque Limiter.
WARNING
Special attention should be exercised
when working with retaining rings.
Always wear safety goggles when
working with spring or tension loaded
fasteners or devices.