Nexen 4K Hinge Top 845100 - Manual (Page 9)

6 FORM NO. L-20014-L-0210
FIGURE 6
FIGURE 7
COMPRESSION SPRINGS (4K BRAKE)
REFER TO FIGURE 6.
1. Pull the Detent Pin (Item 29).
REFER TO FIGURE 7.
1. Remove the Socket Head Cap Screws (Item 18) and
Hex. Nuts (Item 19) securing the Top Housing
(Item 15) to the Bottom Housing (Item 5).
2. Remove the Bottom Housing (Item 5); then, remove
the Hex. Head Jam Nut (Item 11), Washer (Item
10), Diaphragm (Item 9), Push Plate (Item 7), and
Compression Spring (Item 8).
NOTE
Inspect the Compression Spring (Item 8) for
signs of fatigue or cracking. If the Compression
Spring shows signs of fatigue or cracking it
must be replaced.
3. Reinstall the Compression Spring (Item 8).
4. Reinstall Push Plate (Item 7) & Diaphragm (Item 9).
5. Reinstall the Washer (Item 10) and Hex. Head
Jam Nut (Item 11); then, seal the Hex. Head Jam
Nut (Item 11) to the Push Rod (Item 6), using an
anaerobic single-compound adhesive.
6. Using the Socket Head Cap Screws (Item 18),
secure the Bottom Housing (Item 5) to the Top
Housing (Item 15); then, tighten them to 75 in-lbs
[8.5 Nm] torque.
DIAPHRAGM & COMPRESSION SPRING (ALL MODELS )
29
27
1
23
23 22
22
28
2. Remove one Retaining Ring (Item 28); then, remove
the Pin (Item 27).
3. Lift the hinged Fixed Shoe (Item 1) off the Link Pins
(Item 23); then remove the Link Pins.
4. Remove the old Compression Springs (Item 22) and
install the new Compression Springs.
5. Reinstall the Link Pins (Item 23) and position the
hinged Fixed Shoe (Item 1) in place on the Link Pins.
6. Slide the Pin (Item 27) through the hinged Fixed
Shoe (Item 1) and one Link Pin (Item 23); then,
reinstall Retaining Ring (Item 28) removed in Step 2.
7. Close the hinged Fixed Shoe (Item 1) and install the
Detent Pin (Item 29).
CAUTION
Working with spring loaded or tension
loaded fasteners and devices can cause
injury. Wear safety glasses and take the
appropriate safety precautions.
18
5
11
10
9
7
8
16