Manitowoc Grove GRT8100 User Manual

Grove Published 3-25-2020, Control # 595-10 3-15
GRT8100 OPERATOR MANUAL OPERATING CONTROLS AND PROCEDURES
3
Limit Bypass Switch (Non-CE Certified
Cranes)
The Rated Capacity Limiter (RCL) system, when
programmed accurately, will lockout the following crane
functions—boom up/down, telescope extend, and hoist up—
when a lift is attempted at or above the crane's capacity, or
when a two-block condition exists. Locking out these
functions prevents the overload or two-block condition from
worsening.
The Limit Bypass Switch (1) (Figure 3-9) is a two-position,
maintained type key switch. In an emergency situation only,
turn switch clockwise to bypass the following limiter systems
and their craning function lockouts:
• RCL system (boom up/down, telescope extend, hoist
up)
• Anti-two block system (boom up/down, telescope
extend, hoist up)
• Third wrap limiter system (hoist down)
• Working range limiter (WRL) system
• Carrier avoidance system
• -29°C temperature limiter system (optional)
The following indicators illuminate to indicate the limiters are
bypassed:
• Bypass 3 Pressed indicator is on
• RCL Bypass Active indicator is on
• RCL Bypass Status indicator is on
• RCL Lockout LED is flashing
• Anti-two-block indicator is flashing
• Third wrap indicator is flashing
• Working range limiter (WRL) indicator is flashing
• Carrier avoidance indicator is flashing
• -29°C temperature limiter indicator is flashing
All craning functions locked out are bypassed while the key
switch is in the clockwise position.
Overriding the RCL with this switch should only be done in
an emergency.
NOTE: Before powering up crane, ensure Limit Bypass
Switch is in the Normal (not Override) position to
avoid an error code.
Limit Bypass Switch and Indicator (CE
Certified Cranes)
The Rated Capacity Limiter (RCL) system, when
programmed accurately, will lockout the following crane
functions—boom up/down, telescope extend, and hoist up—
when a lift is attempted at or above the crane's capacity, or
when a two-block condition exists. Locking out these
functions prevents the overload or two-block condition from
worsening.
The Limit Bypass Switch is located inside a key-locked
single-door enclosure (1) (Figure 3-10) attached to the
outside rear of the operator's cab. The switch is a
two-position momentary rocker switch.In an emergency
situation only, press and release the switch to bypass the
following limiter systems and their craning function lockouts:
• RCL system (boom up/down, telescope extend, hoist
up)
• Working range limiter (WRL) system
• Carrier avoidance system
• -29°C temperature limiter system (optional)
WARNING
Loss of RCL Monitoring Hazard!
The Limit Bypass Switch is to be used to override the RCL
system in emergency situations only.
Do not operate the crane with the RCL overridden during
normal operations.
WARNING
Loss of RCL Monitoring Hazard!
The Limit Bypass Switch is to be used to override the RCL
system in emergency situations only.
Do not operate crane with RCL overridden during normal
operations.
FIGURE 3-9
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Manitowoc Grove GRT8100 Specifications

General

Brand	Manitowoc
Model	Grove GRT8100
Category	Construction Equipment
Language	English