312 HRLS ROAD MAINTAINER

312 HRLS ROAD MAINTAINER STANDARD FEATURES

Height adjustable front hitch with drop pin clevis hitch. Safety tow chains
3000 lbs. drop foot jack stand for quick and easy hook up and storage
Adjustable wings for varied drag width, adjusts from 8 to 10 ft
6 Bolt high speed hubs and tires
Fully hydraulic rear adjustable blade. Adjust swing, raise, lower, and pitch of the finishing blade from the cab of the tow vehicle
4 x 10 double acting or single acting lift cylinder
Fully welded tubular upper and lower frames

312 HRLS ROAD MAINTAINER OPTIONS

Scarifier blades
Hydraulic power unit
Light bar (DOT compliant)
Spare tire

312 HRLS ROAD MAINTAINER SPECIFICATIONS


WEIGHT	3100 LBS
LENGTH	22'
LENGTH OF WORKING SECTION	20'
CUTTING WIDTH	10’ (Adjustable to 8’ wide)
CUTTING EDGE(S)	5/8” X 8”, C1080 high carbon steel, punched to AASHTO standard
TIRES	(2) 16” Radial tires w/high speed hubs
TOW VEHICLES REQUIRED	60 hp
LIFTING CYLINDERS	(1) 4” X 10” Double acting or single acting.
FRONT HITCH	Pintle or clevis, 20” of adjustment on 1-1/4 Centers (pintle standard)
FINISH	Omaha orange

572/574 Road Maintainer

572 ROAD MAINTAINER STANDARD FEATURES

Extra large capacity - 13" depth, and 24" throat width between inward delivery blades
Not tools required for adjustment of finish blade
Full drag weight transfer to the road surface 5700 lbs.
Optional power finishing blade swing and strike off features
Independently controlled raise and lower of rear wheels for enhanced control of road crown and material flow

572 ROAD MAINTAINER OPTIONS

Hydraulic raise and lower rear finishing blade (Model 572HRL)
Hitches: clevis type (standard) or pintle hook type (optional)
End Shoes - for any or all the Inward delivery blades (can help in widening roads up to 6” per pass)
Radials tires

Optional Hydraulic raise, lower and swing of rear finishing blade (Model 572HRLS)
Scarifier blade(optional)
(Optional) Hydraulic swing only of rear finishing blade(Model 572HS)
Optional quick change spare tire, hub, & spindle assembly, shown with optional radial tire (ILO standard ag tire)

572 / 574 HRLS ROAD MAINTAINER SPECIFICATIONS

MODEL	572 ROAD MAINTAINER	574 ROAD MAINTAINER
WEIGHT	5700 LBS	6000 LBS
LENGTH	29'	31'
LENGTH OF WORKING SECTION	23'	23'
THROAT DEPTH	13'	13'
CUTTING WIDTH	10'	10'
TIRES	(2) 11L x 15”, 8 ply	(4) 11L x 15”, 8 ply
HORSEPOWER REQUIREMENT	110 HP	110 HP
LIFTING CYLINDERS	(1) 4” x 10” Front Lift, (2) 3” x 10” Rear Lift	(1) 4” x 10” Front Lift, (2) 3” x 10” Rear Lift
FRONT HITCH	(1) 4” x 10” Front Lift (2) 3” x 10” Rear Lift Pintle or Clevis 10” of Adjustment on 1-1/4” Centers (Clevis Standard	(1) 4” x 10” Front Lift (2) 3” x 10” Rear Lift Pintle or Clevis 10” of Adjustment on 1-1/4” Centers (Clevis Standard
FINISH	Omaha Orange	Omaha Orange

Now maintaining secondary roads can be done with one easy pass, without the additional costs and expenses of operating a motor grader. Motor grader expenses are high – save money by running with Bonnell.

The 572/574 Road Maintainer from Bonnell eliminates ruts and wash boarding by utilizing six cutting and mixing blades and one finishing blade at the rear. Material is mixed four times and then leveled off to a nearly perfect road surface all in one simple cost effective pass.

Requires only one hydraulic function to raise or lower blades to the ground.

312 Road Maintainer

312 ROAD MAINTAINER STANDARD FEATURES

Height adjustable front hitch with drop pin clevis hitch and loop. Safety tow chains
3000 lb. drop foot jack stand for quick and easy hook up and storage
Adjustable wings for varied drag width, adjusts from 8 to 10 ft
6 bolt high speed hubs and tires
Easily adjustable rear finishing blade height control without the use of tools
4 x 10 double acting or single acting lift cylinder
Fully welded tubular upper and lower frames

312 ROAD MAINTAINER OPTIONS

Scarifier blade option
Hydraulic power unit option
Light bar DOT compliant
Spare tire option

312 ROAD MAINTAINER SPECIFICATIONS


WEIGHT	3100 LBS
LENGTH	22'
LENGTH OF WORKING SECTION	20'
CUTTING WIDTH	10’ (Adjustable to 8’ wide)
CUTTING EDGE(S)	5/8” X 8”, C1080 high carbon steel, punched to AASHTO standard
TIRES	(2) 16” Radial tires w/high speed hubs
TOW VEHICLES REQUIRED	60 hp
LIFTING CYLINDERS	(1) 4” X 10” Double acting or single acting.
FRONT HITCH	Pintle or clevis, 20” of adjustment on 1-1/4 Centers (pintle standard)
FINISH	Omaha orange

Now maintaining secondary roads can be done with one easy pass, without the additional costs and expenses of operating a motor grader.

The Perfect Road Maintainer from Bonnell eliminates ruts and wash boarding by utilizing six cutting and mixing blades and one finishing blade at the rear. Material is mixed three times and then leveled off to a nearly perfect road surface all in one simple cost effective pass.
Additionally, the Perfect Road Maintainer can be used for gravel parking lots, land leveling or drainage contouring on construction sites and large landscaping projects.

Requires only one hydraulic function to raise or lower blades to the ground.

122 Road Maintainer

122 ROAD MAINTAINER STANDARD FEATURES

Height adjustable front hitch with optional clevis, loop, or ball coupler, safety tow chains and 2 - 5/16" ball hitch
Jack stand for quick and easy hook up and storage
72" Fixed cutting width
5 - Bolt high speed hubs and tires
Easily adjustable rear finishing blade height control without the use of tools
2" x 8" Single acting lift cylinder
Fully welded tubular frame
Easily adjustable pitch linkage controls cut depth

122 ROAD MAINTAINER OPTIONS

3 point mount kit
12 volt power unit with wireless controller
Spare tire
Serrated finish blade

Light kit (DOT compliant)

122 ROAD MAINTAINER SPECIFICATIONS


WEIGHT	1200 LBS
LENGTH	16'
LENGTH OF WORKING SECTION	10'
CUTTING WIDTH	6'
CUTTING EDGE(S)	3/4” x 8”, C1080 high carbon steel, serrated, punched to AASHTO standard
TIRES	(2) 16” Radial tires w/high speed hubs
TOW VEHICLES REQUIRED	1/2 Ton 4x4 or 30hp tractor'
LIFTING CYLINDERS	(1) 4” X 10” Double acting or single acting.
FRONT HITCH	2-5/16” Ball coupler or clevis hitch
FINISH	Caterpillar yellow

The all-new 122 Road Maintainer from Bonnell Industries is the little brother of the time-tested, 312 model. The 122’s designers saw a need for a smaller drag that could be towed by a 1/2 ton pick-up or small utility tractor, and that was very maneuverable. We didn’t want to sacrifice quality and ruggedness, however.

The 122 Road Maintainer answers the call for the farmer, park ranger, and/or township supervisor looking to easily maintain their lanes, paths, and secondary roadways.

122 models come standard with serrated blades and a 2 into 1 mixing configuration that creates a level surface. Various options are available, please see our spec sheets for more info!