Test The Drive Speed - Raised Or Extended Position - Genie Z-30/20N Service Manual

April 2016
B-10
Test the Drive Speed – Raised or
Extended Position
Genie specifications require that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Proper drive function is essential to safe machine
operation. The drive function should respond
quickly and smoothly to operator control. Drive
performance should also be free of hesitation,
jerking and unusual noise over the entire
proportionally controlled speed range.Note: Select
a test area that is firm, level and free of
obstructions.
1 Create start and finish lines by marking two
lines on the ground 40 feet / 12.2 m apart.
2 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the start and finish lines.
3 Bring the machine to top drive speed before
reaching the start line. Begin timing when your
reference point on the machine crosses the
start line.
4 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Specifications, Performance
Specifications.
Part No. 139378
Z-30/20N • Z-30/20N RJ • Z-34/22 • Z-34/22N
Checklist B Procedures
5 Lower the boom to the stowed position and
extend the boom 1 foot / 30 cm.
6 Choose a point on the machine (i.e., contact
patch of a tire) as a visual reference for use
when crossing the start and finish lines.
7 Bring the machine to top drive speed before
reaching the start line. Begin timing when your
reference point on the machine crosses the
start line.
8 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Specifications, Performance
Specifications.
Service Manual
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