Test The Drive Speed - Raised Or Extended Position - Genie Z-34/22IC Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-16
Test the Drive Speed -
Raised or Extended Position
Note: Genie requires that this procedure be
performed every 250 hours or quarterly, whichever
comes first.
Proper drive function movement 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 Start the engine from the platform controls.
3 Move the engine idle select switch to foot switch
activated high idle (rabbit and foot switch
symbol).
4 Press down the foot switch and raise the
primary boom above horizontal.
5 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.
6 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.
3 - 28
7 Continue at full speed and note the time when
the machine reference point crosses the finish
line.
8 Lower the boom to the stowed position and
extend the boom 1 foot / 30 cm.
9 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.
10 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.
11 Continue at top speed and note the time when
the machine reference point crosses the finish
line.
Z-34/22 IC
July 2007
REV A
Part No. 128267