How to Service a Husqvarna K770

How to Service a Husqvarna K770

Husqvarna disc cutters such as the K770 are famous for their reliability, robust design and efficiency. It is important, however, to look after such tools so that you can get the best return on your investment. In a similar way to a car that runs more efficiently and safely when regularly serviced, you get the best out of your power tool by keeping it in optimum running order.

Where to buy Husqvarna Parts

If you bought your machine from a Husqvarna Construction dealer then you can contact them for parts and advice. Each authorised dealer will also have the facility to carry out servicing and repair work on Husqvarna machines. 

Husqvarna have created service kits for their flagship petrol powered disc cutters, which contain essential wearing parts that are commonly replaced in good quality power cutters. The service kit, to be launched in August 2020, consists of an air filter, fuel filter, spark plug, starter pull cord, multi-tool and drive belt. 

Changing the air filter on Husqvarna K770

  1. Remove the filter cover by loosening the four screws
  2. Clean the filter compartment area using a vacuum cleaner and cloth
  3. Loosen the screw on top of the old filter
  4. Remove the old filter and ensure compartment is clean
  5. Replace with a genuine Husqvarna air filter
  6. Fasten the filter screw and filter cover screws

Changing the fuel filter on Husqvarna K770

  1. Loosen the fuel cap and carefully remove the empty fuel tank
  2. Use the multitool to hook the fuel hose with the fuel filter end
  3. Remove the old filter by pulling the metal ring
  4. Replace with a genuine Husqvarna fuel filter
  5. Re-attach metal ring to hose
  6. Return hose to fuel tank and fasten fuel cap

How to change the drive belt on Husqvarna disc cutters

  1. Release the belt tension by turning the tensioner to 0
  2. Remove the front belt guard after loosening three nuts
  3. Remove the rear belt guard held on by two screws
  4. Replace the belt and set tensioner to 1
  5. Tighten both screws on rear belt guard
  6. Tighten three nuts to finger tight
  7. Agitate the blade guard up and down
  8. Tighten the nuts securely