Johnson Pump TG GS2-25 - Specific Components; Nuts and Bolts; Plastic or Rubber Components; Flat Gaskets

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A.0500.501 – IM-TGGS/05.01 EN (03/2013)
3.21.3 Specific components
3.21.3.1 Nuts and bolts
Nuts and bolts showing damage or parts with defective threading must be removed and replaced
with parts belonging to the same fixation class as soon as possible.
• Preferablyuseatorquewrenchfortightening.
• Forthetighteningtorques,seetablebelow.
Bolt
Ma (Nm)
8.8 / A4
Plug with
edge and flat
seal
Ma (Nm)
M6 10 G 1/4 20
M8 25 G 1/2 50
M10 51 G 3/4 80
M12 87 G 1 140
M16 215 G 1 1/4 250
M20 430
M24 740
M30 1500
Plug with edge and elastic washer
3.21.3.2 Plastic or rubber components
• Donotexposecomponentsmadeofrubberorplastic(cables,hoses,seals)totheeffectsofoils,
solvents, cleaning agents or other chemicals unless they are suitable.
• Thesecomponentsmustbereplacediftheyshowsignsofexpansion,shrinkage,hardeningor
other damage.
3.21.3.3 Flat gaskets
• Neverre-useatgaskets.
• Alwaysreplacetheatgasketsandelasticringsundertheplugswithgenuinesparesfrom
SPX.
3.21.3.4 Filter or suction strainer
Any filters or suction strainers at the bottom of the suction line must be cleaned regularly.
Note! A clogged filter in the suction piping may result in insufficient suction pressure at the inlet.
Clogged filter in the discharge line may result in higher discharge pressure.
3.21.3.5 Anti-friction bearings
TG GS2-25, TG GS3-32 and TG GS6-40 pumps are equipped with 2RS ball bearings which are
grease packed for life. They do not require periodically greasing.
Starting with pump size TG GS15-50, the pumps are equipped with ball bearings which could be
greased periodically through a grease nipple at the bearing cover.
Supplier NLGI-2 NLGI-3
BP LS2 LS3
Chevron Polyurea EP grease-2
Esso BEACON 2 * BEACON 3
BEACON EP2 (*) UNIREXN3*
Fina
LICAL EP2 CERAN HV
MARSON L2
Gulf Crown Grease No.2 Crown Grease No.3
Recommended greases (Also consult supplier!)
Supplier NLGI-2 NLGI-3
Mobil Mobilux EP2
SKF
LGMT2 LGMT3
LGHQ3 (*)
Shell
ALVANIA R2 ALVANIA R3
DARINA GREASE R2
Texaco Multifak EP-2
Total MULTIS EP-22
* Lubricants recommended by SPX.