MAINTENANCE & I NSPECTIONC HAPTER 99-12THP 94/42 R 4 XXTTHP 125/42 R 4 XXTTHP 140 H/42 R 4 XXTGB-07.20059.5 Lubrication9.5.1 Central lubrication systemUse only greases of NLGL classes 0 to 2. See documentation for the central lubrication system.9.5.1.1 Checking the central lubrication systemThe operation of the central lubrication system must be checked daily. To do this, all grease points should belubricated once manually.1. Starting the lubrication system manuallyThe ignition must be switched on and all Emergency Stop switches released. Set the concrete pump to thesetting “Pump”. Actuate the lubrication system for approx. 2 sec.CAUTION: Check whether the rotor vane on the lubrication pump rotates andsufficient grease is fed in. If grease emerges from the safety valve, no grease points are beinglubricated. This fault must be rectified immediately!2. Checking the grease points on the hopper (Fig. 9.2)At the bearings of the S-valve no. 2 and no. 3 and agitator no. 4 and no. 5 grease must emerge into the hopper;at S-valve no. 1 grease must emerge into the conveying pipe (the flap elbow must be open).3. Checking the operation of the lubrication distributorAfter waiting no more than 4 minutes the control pin in the lubrication distributor must be seen to move in and out.4. Checking the lubrication pipesCAUTION:Immediately replace any defective lubrication pipes!CAUTIONCAUTION
