Owner's manual

Cable Crash Test

Cable Crash Testing is a very quick and easy step to be completed before attempting

the installation of cable with the Deluxe Blower. This test is necessary to set the

hydraulic motor pressure of the blower below the point that it may cause cable

damage as a result of over pushing or encountering an obstruction in the

sub-duct system.

Every cable has different pushing values and these values vary depending on

duct I.D. Example: A cable with a crash test value of 75 bar in 33 mm I.D. duct,

may have a crash value of only 60 bar in a 40 mm I.D. duct. This is because the

area of lateral movement is larger as the duct size increases.

!CAUTION: Always wear protective equipment: hard hat, safety glasses,

safety shoes and work gloves.

NOTE: The hydraulic motor pressure adjustment will have no effect on the

installation speed of the blowing unit. This is not a flow adjustment. This is a

pressure adjustment to prevent damage to the cable that can be caused by excessive

pushing force.

IMPORTANT: For the Crash Test to work properly use the same size cable and duct

that will be used for the job.

Set the hydraulic motor pressure on your Deluxe Blower using the following

procedure.

1. Attach 12' (4 m) of duct to the Deluxe Blower (Figure 6).

2. Install Conduit Pulling Eye on the receiving end of the duct (Figure 7).

3. Cut a piece of fiber optic cable 15' (5 m) long. This is your test piece of cable.

4. Attach the correct size Venturi to fit the cable being installed (Figure 8).

Figure 6. Placement of Conduit in

Conduit Seal & Conduit Clamp

Figure 7. Installing Conduit

Pulling Eye