FAN 0983836 - Caterpillar

Do not use two pump flow when operating a hydraulic hammer.Using two pump flow in a continuous mode may generate hydraulic oil overheat.Damage to the hydraulic hammer and/or other hydraulic components may result.
Illustration 1 g00103919
When a hydraulic hammer is used, the work mode must be set to "Hammer Mode: U2" in order to meet the characteristics of the hydraulic hammer and the performance of the hydraulic hammer.
Always select the proper work mode before operating a hydraulic hammer.Serious damage to the hydraulic hammer may result if the wrong mode is selected.
Push User Mode Switch (1) that is located on the electronic monitor panel in order to activate the hydraulic hammer mode. Repeatedly push the User Mode Switch (1) until U2 shows in the right two positions of the display (2) . The hydraulic hammer cannot operate until the machine is in the hammer mode.
Illustration 2 g00291763
Hydraulic Hammer ON - Push down the top left button on the right control lever in order to activate the hydraulic hammer. Hydraulic Hammer OFF - Release the top left button on the right control lever in order to deactivate the hydraulic hammer.