Tools required

Several basic tools are required for dismantling or assembling the actuator. The tools and their functions are described below.

1. PIPE VICE 2. HEXAGONAL WRENCH

For removing and replacing the sealing plugs and locking screws.

3. VARIOUS SCREWS 4. SAFETY GOGGLES 5. CAP REMOVAL TOOLS

(supplied with the Helac seals kit).

6. DRILL 7. ELECTRIC TORCH

To assist in fi nding and examining the sync markings, any faults on the parts and the general condition.

8. RUBBER MALLET

For removing and installing the piston and shaft sleeve assembly.

9. PLASTIC CHUCK 10. LEVER

For removing the cap and manually rotating the shaft.

11. FELT TIP MARKER

To highlight the sync markings and mark out problem areas. A permanent ink marker is recommended.

12. T-HANDLED SCREW EXTRACTOR 13. SET OF HEX WRENCHES

For removing and replacing the sealing plugs and locking screws (106, 110).

14. SEAL TOOLS

For removing and installing seals and wear guides. Instructions for producing a seal tool are provided below.

15. PUNCH 16. POSITIONING PINS

For removing and installing the cap.

PRODUCTION OF A SEAL TOOL

The seal tool is simply a screwdriver with a modifi ed blade. 1. Heat the fl at end with a blow torch until it is cherry red. 2. Place the heated end in a vice and fold the heated end over slightly. 3. Round off all the sharp edges on the heated part to a fi ne fi nish. The tool can be modifi ed slightly to suit personal preferences.

WARNING

To prevent injuries:

Take care using the screwdriver when it is hot.