Rexnord-Stephan S4 Catalogue

11. Lubrication04-2007 3P0200-XX11.5 Lubricant cooling for SP4 gear unitsFor lubricant cooling, the parallel shaft gear unit (SP4) can be supplied with an additional cooling coil for watercooling upon request, starting with size 4. The cooling coil (1) is screwed onto the casing cover (2). To fill or drainthe coolant, the gear unit casing features pipe connections with 3/4" pipe thread. The hardness of the coolantshould be in the range of 1 -15 ° dH (0.18 - 2.7 mmol/l ) to avoid deposit formation in the cooling coil. The coolantmay contain dissolved and undissolved matter, but only in the concentrations listed in the following table.Contained substances Concentration range ( mg/l )pH value 6 ) 9Chloride Cl - 0 ) 1000Sulfate SO 42- 0 ) 70Nitrate NO 3- 0 ) 100Free (aggressive) carbonic acid CO 2 0 ) 10Ammonium NH 4+ 0 ) 2Iron (dissolved) Fe 2+ / Fe 3+ 0 ) 10Manganese (dissolved) Mn 2+ / Mn 7+ 0 ) 1Sulfide S 2- 0Free chlorine Cl 2 0 ) 5Depositing (organic) substances 0CAUTION!Do not use aggressive liquids for cooling.The cooling performance listed in the following table refers to:20 °C water temperature; flow volume 6 l/min; oil bath temperature 85 °CGear unit sizeCooling performanceMountingMountingpositionposition5, 6 1, 2, 3, 4[kW][kW]SP46B 1.07 0.67SP56B 1.85 1.07SP66B 2.35 1.33SP76B 3.09 1.85SP86B 4.51 2.60SP86C 3.33 1.8511.5.1 Assembly of the pipe systemAttach the feed and drain line of the coolant to one threaded connection piece each. Ensure that the bolts andconnection pieces are not twisted. For this purpose, a second open-end wrench must be used as counter wrench.Ensure tightness. All required connecting pipes, valves, control devices, etc. must be obtained and installed onsiteby the operator.The coolant temperature and flow volume must be checked and ensured by the operator. The drive may only bestarted up if the cooling coil is connected to the cooling circuit and operating. The operator is responsible for thetimely addition of antifreeze if the coolant is at risk of freezing.T78