Spray System RD 12/RD 16wc_tx000670gb.fm 648 Spray System8.1 Troubleshooting the Spray SystemPrerequisites The machine must be able to start in order to troubleshoot the spray system. If themachine does not start, see engine starting troubleshooting.Components The electrical components of the spray system consist of: Pump Pump timer module Spray system switchSequence When troubleshooting the spray system, do so in the following sequence:1. Check power to the pump.2. Check the pump timer module.3. Check the spray system switch.