Check The Drive Hub Oil Level And Fastener Torque; Check The Glow Plugs - Genie Z-34/22 Service Manual

April 2016
B-6
Check the Oil Level in the Drive
Hubs
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Failure to maintain proper drive hub oil levels may
cause the machine to perform poorly and continued
use may cause component damage.
1 Drive the machine to rotate the hub until the
plugs are located one on top and the other at
90 degrees.
1 drive hub plugs
2 Remove the plug located at 90 degrees and
check the oil level.
Result: The oil level should be even with the
bottom of the plug hole.
3 If necessary, remove the top plug and add oil
until the oil level is even with the bottom of the
side plug hole.
4 Install the plug(s) into the drive hub.
5 Check the torque of the drive hub mounting
bolts. Refer to Specifications, Machine
Specifications.
6 Repeat this procedure for each drive hub.
Part No. 139234
Checklist B Procedures
B-7

Check the Glow Plugs

Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Maintaining the glow plugs in good condition is
essential to good engine performance and service
life. Improperly functioning glow plugs will cause
the engine to perform poorly and may result in
component damage.
1 Connect the leads from an ohmmeter between
the far left glow plug and ground.
Result: The resistance should be
approximately 1Ω.
2 If the ohm reading is different than 1Ω, remove
the wire and connector plate from the three
individual glow plugs. Then, one glow plug at a
time, measure the resistance between the
glow plug and ground.
Result: The resistance should be
approximately 1.8Ω for each individual glow
plug.
3 Turn the key switch to ground control and pull
out the red Emergency Stop button to the on
position.
4 Connect the red positive (+) lead from a volt
meter to one of the glow plugs. Connect the
black negative (-) lead to ground.
5 Hold the glow plug switch in the on position.
Result: The volt meter should read 12V DC or
more.
6 Repeat steps 4 and 5 for the other glow plug.
Z-34/22 Bi-Energy
Service Manual
31