Check Cooling Coil; Check Air Oil­cooler; Check Water Oil­cooler - Siemens FLENDER B3 E Series Assembly And Operating Instructions Manual

10.2.7 Check cooling coil

Shut off the cooling­water supply.
Disconnect the water in­ and outflow pipes from the cooling coil.
Check the inside walls of the cooling coil for deposits.
If the cooling coil is dirty, heat is no longer withdrawn effectively from the gear unit.
Any dirt adhering to the inside of the coil should be removed by chemical cleaning or
the cooling coil should be replaced with a new one.
If thick deposits have formed on the inside of the cooling coil, the cooling water and/or the deposits
themselves should be chemically analysed. These analyses are carried out by companies which
specialise in chemical cleaning. They also supply the special cleaning agents required.
Before using these cleaning agents, ensure that they will not damage the coil materials (contact
Siemens). Observe the manufacturer s instructions at all times when using different cleaning agents
by several manufacturers.
Avoid burns when working with corrosive cleaning agents. Always observe the
manufacturers instructions for safety and use.
Wear personal protective equipment (gloves, safety glasses)!
Seriously contaminated cooling coils must be replaced. Consult our Customer Service.
Re­connect the water in­ and outflow pipes.
10.2.8 Check air oil­cooler
The instructions in items 5.10.3, 7.1.2 and 10.1 must be observed!
Close the stop valves in the coolant in­ and outflow pipes.
Remove dirt from the cooler block.
Check the condition of screw connections and, if necessary, replace.
10.2.9 Check water oil­cooler
The instructions in items 5.10.4, 7.1.2 and 10.1 must be observed!
Close the stop valves in the coolant in­ and outflow pipes.
Inspect cooler for leaks in the water conducting piping.
Check the condition of screw connections and, if necessary, replace.
BA 5033 EN 03/2011
90 / 96