Test The Drive Speed - Raised Or Extended Position - Genie Z80/60 Service Manual

Section 3 • Scheduled Maintenance Procedures
CHECKLIST B PROCEDURES
B-16
Test the Drive Speed -
Raised or Extended Position
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 Press the engine rpm select button until the foot
switch activated high idle (rabbit and foot switch
symbol) is selected.
4 Press down the foot switch and raise the boom
until the engine switches to low idle.
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 - 32
7 Continue at full speed and note the time when
the machine reference point crosses the finish
line. Refer to Section 2, Specifications .
8 Lower the boom to the stowed position.
9 Extend the boom 4 feet / 1.2 m.
10 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.
11 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.
12 Continue at top speed and note the time when
the machine reference point crosses the finish
line. Refer to Section 2, Specifications .
Z-80/60
June 2011
REV G
Part No. 88619