CM 2113 2026 SAFETY AND QUALITY
MANAGEMENT REVIEW MANUAL
◉elevating scrapers Answer: not designed to be push loaders, use a
ladder to lift material into the bowl. However the ladder is dead
weight during the haul cycle. Used for utility work, good in small
quantity situations. No pusher is required. They cannot handle rocky
materia
◉auger scraper Answer: self loading scrapers that use a rotating
auger to lift material into the bowl. Available in single and tandem
configurations. More costly to own and operate.
◉push-loaded wheel scraper Answer: has potential for high travel
speeds on favorable roads
◉push-pull tandem powered scrapers Answer: all wheel drive
scrapers equipped with coupling devices that enable 2 scrapers to
assist eachother in loading
◉loading Answer: tandem powered scrapers sometimes require
help
, ◉single powered axle pusher-loader wheel-tractor scrapers
Answer: suited for jobs where the haul-road rolling resistance is low
and grades are minimal. They become uneconomical when haul
grades are greater than 5% and return grades are greater than 12%
◉self-loading scrapers Answer: Heavier and more costly than
conventional scrapers, can be economical in isolated work and for
stripping materials
◉the capacity of a scraper Answer: Expressed in bank cubic yards,
approximated by multiplying the loose volume in the bowl by an
appropriate swell factor
◉backtrack loading Answer: Most common. It permits all scrapers
to load in the same area. However, the slowest bc of the addition
pusher travel distance
◉scraper fixed cycle time Answer: 1. Spot time
2. Load time
3. Maneuver and dump time
◉crawler dozer Answer: -good for short distance
-can handle tight soil
-can push large blade loads
MANAGEMENT REVIEW MANUAL
◉elevating scrapers Answer: not designed to be push loaders, use a
ladder to lift material into the bowl. However the ladder is dead
weight during the haul cycle. Used for utility work, good in small
quantity situations. No pusher is required. They cannot handle rocky
materia
◉auger scraper Answer: self loading scrapers that use a rotating
auger to lift material into the bowl. Available in single and tandem
configurations. More costly to own and operate.
◉push-loaded wheel scraper Answer: has potential for high travel
speeds on favorable roads
◉push-pull tandem powered scrapers Answer: all wheel drive
scrapers equipped with coupling devices that enable 2 scrapers to
assist eachother in loading
◉loading Answer: tandem powered scrapers sometimes require
help
, ◉single powered axle pusher-loader wheel-tractor scrapers
Answer: suited for jobs where the haul-road rolling resistance is low
and grades are minimal. They become uneconomical when haul
grades are greater than 5% and return grades are greater than 12%
◉self-loading scrapers Answer: Heavier and more costly than
conventional scrapers, can be economical in isolated work and for
stripping materials
◉the capacity of a scraper Answer: Expressed in bank cubic yards,
approximated by multiplying the loose volume in the bowl by an
appropriate swell factor
◉backtrack loading Answer: Most common. It permits all scrapers
to load in the same area. However, the slowest bc of the addition
pusher travel distance
◉scraper fixed cycle time Answer: 1. Spot time
2. Load time
3. Maneuver and dump time
◉crawler dozer Answer: -good for short distance
-can handle tight soil
-can push large blade loads
