Valley Rainger Linear, Руководство пользователя

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Rainger Linear 81
MAINTENANCE
Bonding Ground Wire
Bonding ground wire MUST be installed for proper
ground between individual spans. See Figure 81-1.
Above Ground Guidance Cable
Adjustment
1. Attach a 40 ft to 50 ft pigtail loop or smooth cable
grip to the guidance cable. Attach a 2 ton cable
puller to the pigtail loop/cable grip and end post.
Use the cable puller to apply approximately 2000
lb of tension to the guidance cable. See Figure
81-1.
2. Take a static measurement of the guidance cable
distance from the ground at the halfway point be-
tween support stakes. See Figure 81-1.
3. Hook a 0 to 50 lb fish scale on guidance cable at
the halfway point between support stakes. See
Figure 81-1.
OR
Hang 33 lb of weight in a 5 gallon bucket on the
guidance cable at the halfway point between
support stakes.
4. Pull the fish scale toward the ground, hold it at 33
lb of tension and measure the deflected height
of cable from the ground at the halfway point
between support stakes. See Figure 81-1.
OR
Let 33 lb of weight in a 5 gallon bucket hanging
on guidance cable, deflect the cable, measure
the deflected height of cable from the ground at
the halfway point between support stakes.
5. Subtract the deflected measurement from the
static measurement. See Figure 81-1.
Static Measurement
Deflected Measurement
Guidance Cable Deflection
-
The guidance cable deflection should be no more
than 4 in maximum. If the deflection is more than
4 in apply more tension to guidance cable with
cable puller and repeat steps 3 through 5. See
Figure 81-1.
6. After setting guidance cable tension, remove
slack from guidance cable and attach to the end
post with one 3/16 in cable thimble and three
3/16 in cable clamps. Remove cable puller and
pigtail. See Figure 81-1.
4 in (101.6 mm)
Maximum
80 ft (24384 mm)
7
6
5
8
2
4
5
4
3
1
2
Figure 81-1 1. Pigtail Loop or Smooth Cable Grip
2. Guidance Cable
3. Cable Puller
4. End Post
5. Support Stake
6. Fish Scale
7. 3/16 in Cable Thimble
8. 3/16 in Cable Clamp