S0402020
Page 9
Cab
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FALLING OBJECT PROTECTIVE STRUCTURES
(F.O.P.S.)
Falling O bject Protective St ructures are available fr om in dependent ma nufacturers or f abricators. A
certified, approved F.O.P.S. s ystem s hould normally ha ve a per manent, environmentally-protected l abel
securely attached to t he structure (per Society of Automotive Engineers [SAE] standard J1164, “Labeling
of ROPS and FOPS and OPS”), indicating the following:
• Name and address of the manufacturer or fabricator and their certification control.
• Model number of the pr otective st ructure and /or the equipment mak e, model(s) or series the
structure is designed to fit.
• Maximum machine weight for which the structure is certified.
• Numbered, dated list of SAE performance criteria that have been met or exceeded; for example,
SAE J1040 (Apr88), SAE J231 (Jan81), SAE J1356 (Feb88) and/or other performance criteria
or recognized standards (ISO).
Roll O ver Pr otective Structures ( R.O.P.S.) ar e des igned to w ork with seat belt protective r estraints an d
shield the operator in the event of an overturn, in situations where equipment is operated over hazardous
slopes or othe r unstable ground c onditions. Ad ditional R .O.P.S. pe rformance c riteria s pecify p rotective
measures for fuel tanks, oil reservoirs, batteries and operator’s cab edges, corners and projections.
Operator P rotective S tructures ( O.P.S.) ar e de signed to p rovide ad ditional b arrier p rotection ar ound th e
operator’s c ab ar ea. For example, us ing a sh earing a ttachment on the excavator for dem olition work or
certain kinds of mining operation could cause violent break-up of materials, posing the threat of hazardous
projectiles or flying objects being thrown through the operator’s cab wall or window.
DANGER!
If the excavator is to be used in mines, for demolition, or in other areas where falling rocks,
building materials (concrete blocks, steel beams) or other heavy objects pose a danger to the
safety of the operator, a certified Falling Object Protective Structure (F.O.P.S.) must be installed
over the roof and/or front of the cab.
NOTE:
A Falling Object Guard (F.O.G.) is another type of protective structure. In all
cases check with all regulatory agencies for your situation.
WARNING!
Additional protection against projectiles or flying or thrown objects, or supplementary
protection for the operator in the event of equipment tip-over could also be required, if operating
conditions pose additional hazards.
IMPORTANT
Observe all recommended equipment installation procedures for O.P.S., F.O.P.S., and/or R.O.P.S.
systems. Do not attempt to weld, drill holes in or otherwise modify the structure. The integrity of
the system could be compromised. Always use correct fasteners, torqued to specified limits,
and follow all manufacturer’s instructions for installation, maintenance, and/or transfer or re-
installation of the protective system.
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