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an Elcometer company
Replacing the seals on the packing gland and piston seal
1.- Depressurise the pump following the decompression procedure.
2.- Disassemble the suction hose if any or the pump from its support.
3.- Disassemble the hydraulic cylinder (No.23).
DO NOT STRIKE LTHE ENDS OF THE CYLINDERS DURING DISASSEMBLY.
4.- Unthread the valve (No. 22).
5.- Unthread the nut (No.12). Extract the upper hydraulic packing gland body assembly (No.17).
6.- Extract the packing gland (No.16) from the hydraulic body (No17).
7.- Extract the packings (No.18).
8.- Place the new packing gland, with the "V" pointing down ward sand place grease between
the gaskets.
GREASE THE EXTERIOR OF THE GASKETS AND THE HYDRAULIC BODY HOUSING TO
FACILITATE THEIR ASSEMBLY AND AVOID WEAR.
9.- Place the packing gland (No.16) and hand tighten until it stops.
10.- Place the upper hydraulic cylinder (No.17) turning this correctly. Place the washers (No.13)
and fastening nuts (No.12).
PREVIOUSLY GREASE THE LOWER END OF THE PNEUMATIC SPINDLE (NO.8) SO AS NOT TO
DAMAGE THE GASKETS DURING ASSEMBLY.
11.- Place the locking gasket (No.19).
12.- Place the new piston valve (No.22), turning the lip upwards.
13.- Place the hydraulic cylinder (No. 23), previously greasing the inlet cone and the outer part of
the piston seal to facilitate assembly.
CONTROL THE STATUS OF THE INNER SURFACE OF THE CYLINDER TO DETERMINE
WHETHER IT IS NECESSARY TO CLEAN OR REPLACE.
14.- Place the suction probe or pump on its support. Tighten the packing gland while the pump
drains (without pressure).
Replacing the air distributor and pneumatic bushing
1.- Depressurise the pump following the decompression procedure.
2.- Disassemble the suction hose if any, or the pump from its support.
3.- Unscrew the upper plug (No.1) from the pneumatic cylinder.
4.- Disassemble the pneumatic cylinder (No.4).
5.- Disassemble the pneumatic distributor (No.5). If necessary, hold the spindle (No. 8) by means
of the packing gland rods in the air exhaust holes of the pneumatic spindle itself.
6.- Place the new pneumatic distributor (No.5). If necessary, hold the spind lein the way described
in the above section.
GREASE THE PNEUMATIC DISTRIBUTOR CORRECTLY TO FACILITATE THE ASSEMBLY OF
THE PNEUMATIC CYLINDER AND FOR ITS LUBRICATION DURING DRY RUNNING.
7.- Place the PNEUMATIC CYLINDER (No.4) previously greasing the cone on the end to facilitate
the assembly via the pneumatic distributor).
CONTROL THE STATUS OF THE INNER SURFACE OF THE CYLINDER TO DETERMINE
WHETHER IT IS NECESSARY TO CLEAN OR REPLACE.
8.- Place the upper plug (No.1) of the pneumatic cylinder.
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