Service Manual
February 2015
Checklist C Procedures
64
S-
60 • S
-
65 • S
-
60 TRAX • S
-
65 TRAX • S
-
60 HC • S
-
60X • S
-60XC Part No. 825591
13 Using a suitable lifting device, lift the
additional test weight from the platform.
Result: The platform overload indicator lights
should be off at both the ground and platform
controls and the alarm should not sound.
Note: There may be an 2 second delay before the
overload indicator lights and alarm turn off.
14 Start the engine and test all machine functions
from the ground controls.
Result: All ground control functions should
operate normally.
15 Turn the key switch to platform controls.
16 Test all machine functions from the platform
controls.
Result: All platform control functions should
operate normally.
Note: If the platform overload system is not
operating properly, Refer to Repair Procedure,
How to Calibrate the Platform Overload System (if
equipped)
.
17 Using a suitable lifting device, remove all test
weights from the platform.
C-6 Test the Platform Load Sens e Syst em, S- 60 HC
C-6
Test the Platform Load Sense
System, S-60 HC
Genie specifications require that this procedure be
performed every 500 hours or six months,
whichever comes first.
Testing the platform overload system regularly is
essential to safe machine operation. Continued
use of an improperly operating platform overload
system could result in the system not sensing an
overloaded platform condition. Machine stability
could be compromised resulting in the machine
tipping over.
The platform overload system is designed to detect
an overloaded platform and prevent machine
operation anytime the machine is turned on. When
activated, the system halts all normal boom
operation, giving visual and audible warning to the
operator.
Models equipped with the platform overload option
are provided with additional machine components:
an adjustable spring-loaded platform support
subassembly, a limit switch, an electronic module
which receives the overload signal and interrupts
power, and an audio/visual warning indication to
alert the operator of the overload.
The platform support subassembly utilizes two
load support arms that are opposed in a full
parallelogram link. This isolates platform loads into
a shear or vertical state, which translates into a
compressive load. A spring in the parallelogram
link supports this purely compressive load
regardless of where the load is placed in the
platform.
As weight is added to the platform, the spring will
compress until, when the platform is overloaded,
the lower arm contacts a limit switch and thereby
activating the overload signal. When adjusted
correctly, the platform overload system will
deactivate normal boom operation at platform
capacity.
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