Huskey 3 Foam System (pt 1)

Question 1

The hydraulic drive system that powers the foam pump is automatically activated when… (answer for huskey 3 and 12)

Answer 1

1. Huskey 12: when pump is engaged

2. Huskey 3: when foam pump is turned on

Question 2

What are the two valves and what do they control?

Answer 2

1. Foam supply valve: down for foam tank (tank); up for external foam pick-up (draft)
2. Foam selector valve: down for inject mode (normal mode); up for tank filling

Question 3

After flushing after drafting class B, what additional needs to be done?

Answer 3

Recharge the system with the on-board class A foam

Question 4

How do you recharge the system after flushing? (Huskey 3 only)

Answer 4

1. Select foam source: tank A
2. Open manifold drain and Press and hold down the PRIME button (solid yellow LED will illuminate).
3. Release the button when foam is discharged out of the manifold drain.
4. Allow water/foam solution to run out of manifold drain until it is mostly clear
5. Close manifold drain. (System is now charged and ready for use.)

Question 5

What is the manual mode based on?

How to calculate this?

Answer 5

1. 100 gpm flow rate

1. Desired flow gpm / 100gpm x % = % setting [for example 185/100 = 1.85 x .3% = 0.555%]

Question 6

How to turn on the manual mode?

What is a caution?

Answer 6

1. Turn system on
2. Press and hold the INC % and the DEC % buttons until the first LED decimal point (to the left) is flashing for 3 seconds. [NOTE: Adjusting percentage to zero will stop the foam pump from flowing, but will leave system in manual mode.]
3. Dont turn on unless there is a discharge open. Can increase pressure to 300psi.

Question 7

What are the highest percentages for the Huskey 3 and 12?

Answer 7

1. Huskey 3: 3%

2. Huskey 12: 9.9%

Question 8

The system has the ability to deliver the following (minimum) foam solution flow rates at accuracies that meet or exceed NFPA requirements at a pump rating of …? (for Huskey 3 and 12?)

Answer 8

1. Huskey 3: 150psi

2. Huskey 12: 250psi