Section 5 - Troubleshooting
66 SCHWARZE HYPERVAC HV-18 revised 11/18
5.1 Troubleshooting the Sweeping System
Problem Possible Cause Remedy
Loss of Vacuum or Not
Picking Up Debris
Sweeping too fast Slow down
Auxiliary engine speed too low Increase auxiliary engine speed
Nozzle not fully lowered Lower nozzle completely
Worn nozzle aps Replace aps
Faulty seal (fan, intake or door) Replace Seal(s)
Torn hose(s) Replace hose(s)
Bent or uneven nozzle arms Straighten or replace arm
Blocked intake inlet Remove hose and clean debris from intake inlet
Blocked screen Remove blockage
Blocked intake tube Remove blockage
Loose drive belt Tighten belt
Low auxiliary engine rpm Seek service
Leaf door open Close leaf door
Worn Fan Replace fan
Fan not located properly within fan housing Adjust fan or back plate
Holes in hopper or fan housing Repair holes
Excessive Runner Wear or
Nozzle Not Gliding Properly
Bent or uneven tow arms Straighten or replace tow arms
Bent nozzle Straighten or replace nozzle
Nozzle Drifting Down Leaking nozzle cylinder seal Rework seals
Lock valve stuck open Replace or clean
Unusual Noise or Vibration Worn bearings Replace bearing(s)
Fan out of balance Clean debris, re-balance or replace fan
Fan shifted within housing Reposition fan
Loose drive belt Tighten drive belt
Loose bolts Tighten bolts
Fan blades worn or broken Replace fan
Loose shaft bearing bolts Tighten bolts
To Next Page
Loading...