Delco 2000 - 4 NG 091 Operator's Manual

Contents

Delco 2000 - 4 NG 091 Operator's Manual Manual pdf 16 page image

Page 16 3000-4, 2000-5 NG/LPHOW TO CORRECT PROBLEMS IN THE MACHINEProblem Cause ActionOil is dripping The oil seal is worn. Contact an authorized Delco service person.Chemical not Chemical control valve Tighten all fittings. Check for leaks in plasticpicking up. leaking around fittings. chemical lines.Chemical control valve Tighten jam nut. Replace valve.leaking around stem.Screens on chemical Clean or replace.suction lines stopped up.Pop-off valve leaking Not adjusted properly. Contact an authorized Delco distributor.Seat bad or worn. Replace pop-off valve.Nozzle stopped up or Remove nozzle and clean. Turn hi-pressurerestricted in discharge. pump on and flush lines, then replace nozzle.The pump The oil level is low. Fill to the proper oil level with high quality SAEoverheats. 30-weight non-detergent oil.The machine has been Immediately press the gun release leverrunning for an extended to allow cool water to flow into the pump.period of time with the trigger gun off.Pressure excessive, rises Scale or dirt in coils See "Preventative Maintenance" descaling of coils.too fast, and pops off at relief valveHigh pressure nozzle. Remove nozzle at tip of gun and clean. Flush.There is/has been The oil seal is worn. Contact an authorized Delco service person.water in the oil and water is drippingfrom under the pump. The humidity is high. Contact an authorized Delco service person.Cracked plunger. Contact an authorized Delco service person.The plunger packing isworn. Contact an authorized Delco service person.The plunger retainer Contact an authorized Delco service person.o-ring is worn.Excessive vibration to gun Worn, clogged or defective Contact an authorized Delco service person.and hose check valves in pump.Restricted or under size nozzle. Clean and or replace with proper size.The pump is drawing air. Contact an authorized Delco service person.The motor will not start. Power cord may not be connected. Connect the power cord.Switch may not be turned "ON", Turn switch "ON".Ground fault circuit Reset the ground fault circuit interrupter.interrupter did not reset.The power cord may be Contact a licensed electrician.connected to a dead outlet.May have a defective motor or switch. Contact your authorized Delco dealer.The thermal overload switch tripped. Allow motor to cool, reset thermal switch.The motor has difficulty Circuit may be too long, Locate the outlet nearest to the circuitstarting, or is overheating. overloaded, or conductors panel which can be reached with themay be undersized. cord supplied with the machine.Incorrect voltage or frequency. Check the voltage and frequency.The motor is wet. Contact an authorized Delco service person.The coils are limed. Delime the coils. See Operators Safety ManualThe nozzle is dirty. Remove and clean the nozzle.Low Pressure Loose belt on pump. Tighten the belt.Leaks in plumbing. Tighten all connections.Insufficient water supply Increase water supply by using larger lines.Insufficient water. Check water pressure and flow to machine.Check float valve and float valve adjustments.Nozzle is worn. Replace the nozzle.Wrong nozzle size. Replace with proper size.Dirty or worn check valves in pump. Contact an authorized Delco distributor.V-packings. Contact an authorized Delco distributor.