Informational_Previous Question and Answers .pdf
PDF 14 KB Posted
- Attached to
- Snow Blower, Heavy Duty, Wheel Loader Attachment
- Solicitation number
- RFP 591 210000002366 2
- Issued by
- Houghton County, Michigan
About this file
This file is a Question and Answer document from the Maryland Department of Transportation (MDOT) regarding specifications for a snow blower equipment procurement. The document addresses multiple technical specification inquiries submitted by a bidder regarding attachment specifications listed in document C57.0651.21. The inquiries center on alternative component designs and specifications for a snow blower unit, including auger configuration, auger speed, drive systems, chain tensioners, impeller blade configuration, fan housing dimensions, engine displacement, and hydraulic system capacity. MDOT's responses indicate that the agency is seeking equipment with specific technical requirements based on field-tested performance standards for snow removal operations, particularly for managing hard-packed snow conditions.
MDOT rejected most proposed alternatives that would deviate from the specified three-auger system with chain drive, hydraulic relief protection, and hydraulic-driven components, emphasizing that these features are critical for the intended application. The agency approved only two exceptions: accepting five replaceable impeller blades instead of six and accepting a fan housing throat size of 12.75 inches instead of 14 inches. The document demonstrates MDOT's commitment to maintaining equipment specifications that have proven effective in field conditions, with particular emphasis on hydraulic drive systems over mechanical alternatives and larger displacement engines to meet torque and horsepower requirements for reliable snow removal performance.
View the file
Other files
| File | Type | Posted |
|---|---|---|
| (RFP 210000002366) Snow Blower w Wheel Loader.docx | DOCX document | |
| (RFP 210000002366) Attachement A Specifications C57-0651.21.xlsx | XLSX spreadsheet |
On GovTribe
Work with this file
- Download the original file
- Contacts named in this file
- Similar government files
- Ask GovTribe AI about this file
Text version
INFORMATIONAL - previously submitted Q&A Page 1 of 2
Document NameSection # Bidder Question MDOT RESPONSE
Attachment A -
Specifications
C57.0651.21
None provided Kodiak's standard snow blower uses two helical serrated ribbons instead of three augers and a Poly-Kevlar belt drive system in lieu of a chain drive.
Q. Will you allow Kodiak's standard two-stage blower design as an acceptable alternative?
Augers and the chain driven belt drive are key components for this purchase. Stated alternate components will not meet the specific usage for
MDOT.
Attachment A -
Specifications
C57.0651.21
4.1 Shall have three (3)
14-inch diameter – full flight, Serrated:
Would you accept two (2) 20-inch diameter auger as equivalent?
MDOT field experience with the three auger system has proven more effective in removal of hard packed snow. A standard two-stage blower without 3 augers will not meet the specific usage for
MDOT.
Attachment A -
Specifications
C57.0651.21
4.3 Auger speed: 450 RPM Since the augers diameter is greater, would you accept auger speed: 200 RPM as equivalent
MDOT field experience with the three auger system has proven more effective in removal of hard packed snow. A two-stage blower with 200 RPM auger speed will not meet the specific usage for
MDOT.
Attachment A -
Specifications
C57.0651.21
5.1 Hydraulic relief
protection (5500 psi)
Would you accept shear pins protection as equivalent since our design is mechanical drive?
Hydraulic Drive is a key component for MDOT usage. Shear pins require additional maintenance and involve downtime of the unit for replacement.
A mechanical drive will not meet the specific usage for MDOT.
Attachment A -
Specifications
C57.0651.21
5.4 Self-adjusting
chain tensioner
Would you accept sliding type chain tensioner as equivalent Sliding type chain tensioner requires additional maintenance of the unit compared with self adjusting tensoner. MDOT will not view sliding type chain tensioner as equivalent
Attachment A -
Specifications
C57.0651.21
6.1 Second stage shall be
38-inch diameter, with six
(6) replaceable blades made of T-1 steel.
Would you accept five (5) replaceable blades impeller as equivalent?
Yes this would be acceptable to MDOT.
Attachment A -
Specifications
C57.0651.21
6.2 The impeller shall be
protected by a hydraulic relief.
Would you accept shear pins protection as equivalent since our design is mechanical drive?
Hydraulic Drive is a key factor for the unit. Shear pins require additional maintenance and involve downtime of the unit for replacement. A mechanical drive will not meet the specific usage for MDOT.
Document NameSection # Bidder Question MDOT RESPONSE
Attachment A -
Specifications
C57.0651.21
7.2 Fan housing throat
size- 14-inch depth
Would accept a fan housing throat size of 12.75-inch depth as equivalent since the blowing meet the requirement?
Yes this would be acceptable to MDOT.
Attachment A -
Specifications
C57.0651.21
9.2 Cubic Inch
Displacement: 543 cu. in./ rev. (8.9 L)
Would you accept Displacement of 6.7 L (408 in3) as equivalent?
Engine horse power and tourqe are key factor for the unit. The listed displacement will not meet the specific usage for MDOT.
Attachment A -
Specifications
C57.0651.21
11.1 20-gallon hydraulic reservoir
Our unit is mechanical drive, the hydraulic reservoir capacity is 3-gallon that is adequate for the application.
Hydraulic Drive is a key factor for the unit.
A mechanical drive will not meet the specific usage for MDOT.
Attachment A -
Specifications
C57.0651.21
11.2 Tandem Hyd. closed
loop pumps, hyd.
motor/planetary for fan drive low speed high torque motor for auger drive
Not applicable with mechanical drive unit. Hydraulic Drive is a key factor for the unit.
A mechanical drive will not meet the specific usage for MDOT.
Attachment A -
Specifications
C57.0651.21
11.3 Hydraulic cooler: Not applicable with mechanical drive unit. Hydraulic Drive is a key factor for the unit.
A mechanical drive will not meet the specific usage for MDOT.
Bidder Question
File details come from the government source that posted it. Updated .