SPX TG H15-50, Instruction Manual, Page: 58 / 110

58 A.0500.351 – IM-TGH/07.02 EN (10/2015)
3.21.2.9 Fluid circuits
• Depressurize the jackets and the retaining fluid circuits.
• Uncouple the connections to the jackets and to the circulating or flush/quench media circuits.
• If necessary, clean the jackets and the circuits with compressed air.
• Avoid any leakage of fluid or thermal oil into the environment.
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 flat gaskets.
• Always replace the flat 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 H2-32 and TG H3-32 pumps are equipped with 2RS ball bearings which are grease packed for
life. They do not require periodically greasing.
Starting with pump size TG H6-40, the pumps are equipped with ball bearings which could be
greased periodically through a grease nipple at the bearing cover.
Recommended greases (Also consult supplier !)
Supplier NLGI-2 NLGI-3 Supplier NLGI-2 NLGI-3
BP LS2 LS3 Mobil Mobilux EP2
Chevron Polyurea EP grease-2
SKF
LGMT2 LGMT3
Esso
BEACON 2 (*) BEACON 3 LGHQ3 (*)
BEACON EP2 (*) UNIREX N3 (*)
Shell
ALVANIA R2 ALVANIA R3
Fina
LICAL EP2 CERAN HV DARINA GREASE R2
MARSON L2 Texaco Multifak EP-2
Gulf Crown Grease No.2 Crown Grease No.3 Total MULTIS EP 2 (*)
(*) Lubricants recommended by SPX.