PackForge Knapsack Power Sprayer 4-Stroke 139F

What is a knapsack power sprayer?

The 139F engine drives a pump that draws liquid from the 20 litre tank and sends it to the lance at about 15 to 25 kg/cm2. Flow is about 6 to 8 litres per minute, and pressure stays steady as the tank empties. The 0.65 litre fuel tank takes plain petrol and engine oil sits apart, so nobody has to mix fuel. Empty, the set weighs 9 to 10 kg.

It fits individual farmers and village spraying work on cotton, paddy, vegetables, young fruit plants and gardens, especially plots too large for a hand pump yet unsuited to a tractor. Tall mature trees need the reach of the HTP 7 HP pump. If a full back tank is too heavy for the person spraying, the GX35 sprayer is the lighter option.

Spraying cotton with the 139F knapsack – 4 steps

1. 1
   Fill the tankMix chemical by the label and pour it into the 20 litre tank, closing the lid firmly to stop leaks.
2. 2
   Fuel and startAdd plain petrol to the 0.65 litre tank, check the engine oil, then start the engine before lifting the set on.
3. 3
   Strap on and setAdjust both straps so the tank sits high and level, then pick a fine or coarse nozzle for the job.
4. 4
   Walk and sprayMove at a steady pace, releasing the trigger between plants. Wear a mask, goggles, gloves and covered clothing.

• 139F 4-stroke
• 20 litre chemical tank
• 6 to 8 L/min
• 15 to 25 kg/cm2
• 0.65 litre petrol
• 9 to 10 kg empty