Check The Electrical Contactors; Inspect The Fuel And Hydraulic Tank Cap Venting Systems - Genie Z-34/22 Service Manual

Service Manual
Checklist B Procedures
B-16

Check the Electrical Contactors

Note: Genie specifications require that this
procedure be performed every 250 hours or
quarterly, whichever comes first.
Maintaining the electrical contactors in good
condition is essential to safe machine operation.
Failure to locate a worn or damaged contactor
could result in an unsafe working condition and
component damage.
1 Remove the non-steer drive chassis cover and
locate the electrical contactors mounted on
the component mounting panel.
2 Visually inspect the contact points of each
contactor for the following items:
• Excessive burns
• Excessive arcs
• Excessive pitting
Electrocution/burn hazard.
Contact with electrically charged
circuits could result in death or
serious injury. Remove all rings,
watches and other jewelry.
Note: Replace the contactors if any damage is
found.
38
B-17
Inspect the Fuel and Hydraulic
Tank Cap Venting Systems
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Perform this procedure more often if dusty
conditions exist.
Free-breathing fuel and hydraulic tank caps are
essential for good machine performance and
service life. A dirty or clogged tank cap may cause
the machine to perform poorly and continued use
may cause component damage. Extremely dirty
conditions may require that the caps be inspected
more often.
Note: Perform this procedure with the engine off.
1 Remove the fuel filler cap from the tank.
2 Check for proper venting.
Result: Air passes through the fuel tank cap.
Proceed to step 4.
Result: If air does not pass through the cap,
clean or replace the cap. Proceed to step 3.
Note: When checking for positive tank cap venting,
air should pass freely through the cap.
Z-34/22 Bi-Energy
April 2016
Explosion and fire hazard.
Engine fuels are combustible.
Perform this procedure in an
open, well-ventilated area away
from heaters, sparks, flames and
lighted tobacco. Always have an
approved fire extinguisher within
easy reach.
Part No. 139234