Valley Rainger Linear, Руководство пользователя

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82 Rainger Linear
MAINTENANCE
Span Safety Box Cable Tension Adjustment
1. Check safety cable tension.
Use a truss spreader part number 9360055 to check the cable tension. The truss spreader is 115 in (292
cm) long and weighs 23.4 lb (10.6 kg).
2. Position the truss spreader across the safety cables at approximately 58 in (147 cm) from the alignment
mounting bracket. See Figure 82-1.
3. Hold and support the truss spreader across the safety cables and measure the distance from the truss
spreader to the span pipe. This is the ORIGINAL measurement. See Figure 82-1.
4. Lower the spreader angle onto the safety cables and allow the safety cables to support the full weight of
spreader angle.
5. Measure the distance from the spreader angle to the span pipe. This is the DEFLECTED measurement.
The full weight of the spreader angle should deflect the safety cables downward approximately 1-3/4 in to 2
in (41 mm to 51 mm) when the DEFLECTED measurement is compared to the ORIGINAL measurement.
Adjustment of deflection is made at the fixed end cable mount hook bolts. See Figure 82-2.
58 in (147 cm)
2
3
5
4
7
6
2
1
8
Figure 82-1 1. T-bar
2. Safety Cable
3. Truss Spreader
4. Support Truss Spreader so Span Cables Do Not Deflect
5. Alignment Mounting Bracket
6. 58 in (147 cm)
7. Span Pipe
8. Original Measurement
58 in (147 cm)
2
2
1
3
4
5
5
6
7
8
Figure 82-2 1. Spreader Angle
2. Safety Cable
3. Span Pipe
4. Fixed End Cable Mount
5. Hook Bolt
6. T-bar
7. Refer to Step 5
8. Deflected Measurement