6.7 Pumping operations ........................................................................................................ 6 — 14
6.7.1 Breaks in pumping .......................................................................................................... 6 — 15
6.7.2 Terminating pumping operations ..................................................................................... 6 — 16
6.8 Blockages ........................................................................................................................ 6 — 17
6.8.1 Removing blockages ....................................................................................................... 6 — 18
6.9 Cleaning .......................................................................................................................... 6 — 20
6.9.1 General ........................................................................................................................... 6 — 20
6.9.2 Cleaning the machine ..................................................................................................... 6 — 22
6.9.3 Cleaning the delivery line ................................................................................................ 6 — 24
6.9.4 Cleaning seals ................................................................................................................. 6 — 27
6.9.5 Cleaning the spray gun ................................................................................................... 6 — 29
7 Faults, cause and remedy ...................................................... 7 — 1
7.1 General machine ............................................................................................................. 7 — 2
7.2 Spray gun ........................................................................................................................ 7 — 3
7.3 Electrical system ............................................................................................................. 7 — 3
8 Maintenance ........................................................................... 8 — 1
8.1 Maintenance and inspection by the machine operator .................................................... 8 — 2
8.2 Maintenance intervals ..................................................................................................... 8 — 2
8.3 Residual risks during maintenance work ......................................................................... 8 — 4
8.3.1 Personnel requirements .................................................................................................. 8 — 4
8.3.2 Personal protective equipment ........................................................................................ 8 — 4
8.3.3 Residual risks .................................................................................................................. 8 — 4
8.4 Functional fluids .............................................................................................................. 8 — 5
8.4.1 Gear motor ...................................................................................................................... 8 — 6
8.4.2 Compressor ..................................................................................................................... 8 — 6
8.4.3 Manual lubrication ........................................................................................................... 8 — 7
8.4.4 Screw conveyor ............................................................................................................... 8 — 7
8.5 General tightening torques for bolts ................................................................................ 8 — 7
8.6 Maintenance work ........................................................................................................... 8 — 7
8.6.1 Before beginning maintenance work ............................................................................... 8 — 8
8.6.2 Replacing the filter mats .................................................................................................. 8 — 8
8.6.3 Cleaning the dirt trap screen in the pressure reducer valve ............................................ 8 — 10
8.6.4 Replacing the screw conveyor ........................................................................................ 8 — 11
8.6.5 Disassembling the pressure flange ................................................................................. 8 — 12
8.6.6 Mounting the auger pump on the mixing pipe ................................................................. 8 — 15
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