top-of-pole mount for 8 modules (tpm8) for module type cthese are to assist in the assembly process...

C 22-27” 56-63”

ModuleType Width Length

ASSEMBLY INSTRUCTIONS

Top-of-Pole Mount for 8 Modules (TPM8)For Module Type C

step-by-step

assembly and installation

Version 2, Rev C

PCN 062811-2

A few words about the product

About these Assembly Instructions

Required Tools

For foundation and pipe size recommendations on a specific installation, pleasecontact us at:

Phone: 800-260-3792

Email: [email protected]

These instructions...

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Are intended to be used by individuals with sufficient technical skills forthe task. Knowledge and use of hand tools, measuring devices and torquevalues is also required.

Include various precautions in the forms of Notes, Cautions, andWarnings. These are to assist in the assembly process and/or to drawattention to the fact that certain assembly steps may be dangerous andcould cause serious personal injury and/or damage to components.Following the step-by-step procedures and these precautions shouldminimize the risk of any personal injury or damage to components whilemaking the installation not only safe but an efficient process.

The TPM8 for module type C is designed to mount on 6 inch SCH40/80galvanized steel pipe (installer supplied).

Pipe size and foundation requirements are based on several factors including thearray surface area, maximum design wind speed, exposure category, soil type,steepest expected tilt angle, and above-ground clearance.

For general foundation and pipe size recommendations, please see our publicationtitled “TPM Pipe and Foundation Recommendations”.

7/16 inch wrench or socket for 1/4 inch module hardware

9/16 inch wrench or socket for 3/8 inch hardware

3/4 inch wrench or socket for 1/2 inch hardware

1-1/8 inch wrench or socket for 3/4 inch Pivot Bolt hardware

Torque wrench

Ratchet wrench

Ratchet extension bar

3 to 6 foot level

Tape Measure

Square

Top-of-Pole Mount for 8 Modules (TPM8) For Module Type C

WARNING:Follow theprocedures andprecautions inthese instructionscarefully.

1 of 10Assembly Instructions, Top-of-Pole Mount for 8 Modules (TPM8) For Module Type C (Version 2, Rev C)

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Assembly Instructions, Top-of-Pole Mount for 8 Modules (TPM8) For Module Type C (Version 2, Rev C)

Step 1: Install the Mounting Sleeve on Vertical Pipe

Step 2: Install the Strongback to the Mounting Sleeve

Before installing the Mounting Sleeve, verify that the Mounting Pole is plumb tothe ground and hasn't shifted or leaned while the concrete footing has cured.

The Mounting Sleeve slips on top of the Mounting Pole and has four 1/2” Set Boltswhich are used to secure it to the Mounting Pole. (See Figure 1-1)

A. Slip the Mounting Sleeve on top of Mounting Pole and slide it down until itrests/bottoms out on top of Mounting Pole.

B. Rotate the Mounting Sleeve so the Support Bar Pivot Tab is pointing northand the Strongback Vertical Towers are leaning south.

C. Secure the Mounting Sleeve by tightening the four 1/2” Set Bolts.

The Strongback is attached to the Mounting Sleeve using the Pivot Bolt that passesthrough its two Vertical Towers and the Support Bar. The Support Bar is attached tothe Strongback on one end and the Support Bar Pivot Tab of the Mounting Sleeveon the other end using 3/8” hardware.

A. Remove the Support Bar from the Strongback and re-install in the 15elevation set point. Secure with the 3/8” hardware and finger tighten. (SeeFigure 2-1)

Torque eachSet Bolt to 55-60 ft.-lbs.

°

Figure 1-1: Installing the Mounting Sleeve

Figure 2-1: Positioning Support Bar

CAUTION:Use care whileworking aroundthe structureduring assembly.There could becomponents thatcreate hazards orobstruct freemovement causingserious bodilyinjury. Many are athead/eye level.Move slowly andwith care aroundthe work area.

NE

WS

MountingSleeve

StrongbackVertical TowersLeaningSouth

Support BarPivot TabpointingNorth

MountingPole

Set Bolts

Set Bolts

Elevation Set Points

Strongback

SupportBar65° 55° 45° 35° 25° 15°

15° Position

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NOTE:Although thissystem offers sixelevation setpoints, for ease ofassembly, set theangle to its lowestsetting of15-degrees.Optimum tilt settingof the rack will takeplace later in theseinstructions.


B. Remove the Pivot Bolt from the Mounting Sleeve and also collect the3/8” x 1-3/4” bolt, flat washers and lock washer needed to secure theSupport Bar to its Pivot Tab on the Mounting Sleeve. (See Figure 2-2)

C. Orient the Strongback to the Mounting Sleeve with its Lower Support Barpositioned on the same side of the Mounting Sleeve as the Support BarPivot Tab.

D. Slide the Strongback between the two vertical mounting tabs, aligning thethru-hole of the Strongback with the holes of the two Vertical Towers.

E. Insert the Pivot Bolt along with one flat washer through the one VerticalTower and the Strongback exiting the second Vertical Tower on the oppositeside. Secure with the remaining flat washer, lock washer and hex nut. Fornow, finger tighten only to allow movement for the next step.

(Continued on next page)

Figure 2-2: Installing the Strongback

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Strongback

Bolt3/4” x 5-1/2”Pivot

FlatWasher

Vertical Towers

FlatWasher

Lock Washer

3/4” Hex Nut

MountingSleeve

CAUTION:This is a twoperson activity.The Strongbackmust be held inplace by oneperson while thesecond personaligns it andsecures it to theMounting Sleeveusing the PivotBolt and the 1/2”hardware. Failureto do so couldlead to seriouspersonal injury.


F. Pivot the Strongback and the Support Bar to align the mounting holes of theSupport Bar with its Pivot Tab on the Mounting Sleeve. Slide the SupportBar over the Pivot Tab. Insert the 3/8” x 1-3/4” bolt and one flat washerthrough the Support Bar and Mounting Tab and secure it with the remainingflat washer, lock washer and hex nut.

(See Figure 2-3)

G. Return and tighten

Cross-Bars run in an E-W direction and are secured to the Strongback mountingangles using 3/8” square flat washers along with 3/8” x 3-1/4” bolts and hardware.There are two Cross-Bars to be installed.

Cross-Bars are mounted to the outside of the Strongback mounting angles they donot nest into the Mounting Angles. (See Figure 3-1)

A. Position the Cross-Bar on the outside of the mounting angle of theStrongback. Align the mounting holes and secure using 3/8” flat and squarewashers along with the 3/8” x 3-1/4” bolts and lock washer placing thesquare flat washer against the Cross-Bar. Tighten hardware and

(See Figure 3-2)

B. Install the other Cross-Bar to the Strongback using the same procedure.Refer to Figure 3-1 as needed for proper positioning.

Torque hardware on both ends ofSupport Bar at 32-34 ft.-lbs.

Torque to 125-150 ft.-lbs.

Torque to30-32 ft.-lbs.

the Pivot Bolt,

Step 3: Install the Cross-Bars to the Strongback

Installing the Cross-Bars.

3/8” x 1-3/4” Bolt

Flat Washer

Pivot Tab

Flat Washer

Lock Washer

Support Bar

3/8” Hex Nut

Figure 2-3: Securing Support Bar to Mounting Sleeve

CAUTION:This is a twoperson activity.Cross-Bars arelong and unstablebefore they arefully secured to theStrongback. Cross-Bars must be heldin place by oneperson while thesecond personaligns and securesthem to theStrongback. Failureto do so could leadto serious personalinjury.

5 of 10Assembly Instructions, Top-of-Pole Mount for 8 Modules (TPM8) For Module Type C (Version 2, Rev C)

Strongback

Cross-Bar

MountingAngle

3/8” SquareWasher

Flat Washer

Lock Washer

Flat Washer

3/8” Nut

3/8” x 3-1/4”Bolt

N

EW

S

Figure 3-1: Cross-Bar Positioning relative to Mounting Angles

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Strongback

Cross-BarMountingAngle

CORRECT WRONG

Figure 3-2: Installing Cross-Bars on the Strongback

CAUTION:Be sure to placethe 3/8” squarewashers on thesurface of theCross-Bar and notthe MountingAngles of theStrongback.Failure to do sowill damage thesurface of theCross-Bar whenthe attachinghardware istightened.


Step 4: Install the Module Rails to the Cross-Bars

Module Rails run in an N-S direction and are secured to the mountingtabs using 3/8” x 1” bolts and hardware. There are four Module Rails to be installed.

Module Rails are installed differently depending on whether they are mountedinboard or on the outer edges of the Cross-Bars. (See Figure 4-1)

A. Referring to Figure 4-1 for orientation of the inboard Module Rails, positionthe first section of Module Rail. Align the Module Rail mounting holes withthe holes of the Cross-Bar mounting tabs and secure with 3/8” x 1” bolts andhardware. . Finger-tighten fornow. (See also Figure 4-2)

B. Now install the opposite inboard Module Rail f. Refer to Figure 4-1 as needed for orientation of the Module Rail.

A. Referring to Figure 4-1 for orientation of the outboard Module Rails,position the first Module Rail. Align the Module Rail mounting holes withthe holes of the Cross-Bar mounting tabs and secure with 3/8” x 1” bolts andhardware . Finger-tighten fornow. (See also Figure 4-3)

Cross-Bar

Each Module Rail has two attachment points

ollowing the aboveprocedure

; each Module Rail has two attachment points

B. Now install the opposite outboard Module Rail following the aboveprocedure. Refer to Figure 4-1 as needed for orientation of the Module Rail.

Start by installing the inboard sections of Module Rail first and work outward.

Next, install the outboard Module Rails.

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Figure 4-1: Orientation of Module Rails to Cross-Bars

View looking North

Cross-Bar

ModuleRail (in )Red

Cross-BarMounting Tab


NOTE:Finger-tighten theModule Rails tothe Cross-Barswhile installing.When all ModuleRails are installed,re-tighten tospecified torquevalues.

NOTE:Double check theorientation ofinboard tooutboard ModuleRails. If they areinstalled differentlyfrom theseinstructions themounting holeswill not align to theholes of the PVModules.

CAUTION:This is a twoperson activity.Module Rails areunstable beforethey are fullysecured to theCross-Bars.Module Rails mustbe held in placeby one personwhile the secondperson aligns andsecures them tothe Cross-Bars.Failure to do socould lead toserious personalinjury.

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Figure 4-2: Installing Inboard Module Rails to Cross-Bars

Figure 4-3: Installing Outboard Module Rails to Cross-Bars

Module Rail

Cross-Bar

Strongback

3/8” x 1”Bolt

Lock Washer

Flat Washer

Flat Washer

3/8” Nut

Module Rail

Cross-Bar

3/8” x 1”Bolt

Lock Washer

Flat Washer

FlatWasher

3/8” Nut


Step 5: Installing PV Modules to Module Rails

Step 6: Now return and tighten mounting hardware

PV Modules are secured to the Module Rails using 1/4” x 3/4” bolts and hardware.

Start with the southern most PV Modules and work in a northern direction. Thisprovides a measure of safety as the previously installed southern Modules can helpto hold the next in-line northern Module in place during installation.

A. Place the southern most PV Module in place on the Module Rails. Align themounting holes and secure with 1/4” x 3/4” bolts and hardware. EachModule has four attachment points. Finger-tighten for now. (See Figure 5-1)

B. Continue in this manner to install all southern most PV Modules first andthen work in a northern direction installing the remaining Modules.

A. Return and tighten each set of the 3/8” mounting hardware, securing theModule Rails to the Cross-Bars.

B. Return and tighten each set of 1/4” mounting hardware, securing the PVModules to the Module rails.

Torque all at 32-34 ft.-lbs.

Torque all at 6-8 ft.-lbs.

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Figure 5-1: Installing PV Modules to Module Rails

1/4” x 3/4”Bolt

Lock Washer

Flat Washer

Flat Washer

1/4” Nut

Module

ModuleRail

CAUTION:This is a twoperson activity. PVModules areheavy andunstable beforethey are fullysecured to theModule Rails. PVModules must beheld in place byone person whilethe second personaligns andsecures them tothe Module Rails.Failure to do socould lead toserious personalinjury anddamagedcomponents.

CAUTION:Be certainre-tighten allModule Rail andPV Modulemountinghardware andtorque to thespecified values.Failure to do socould lead tostructural failure,damagedcomponentsand/or seriouspersonal injury.


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Step 7: Adjust the Tilt Angle of the Rack

To adjust the tilt angle, loosen the Pivot Bolt hardware and removing the SupportArm upper hardware attaching the Support Arm to the Strongback. Use great care inthis procedure as it can be dangerous if the procedure is not completed as describedwith a minimum of two people.

A. While one person holds the south edge of rack, the other loosens the PivotBolt and removes the upper 3/8” hardware attaching the Support Bar to theStrongback. (See Figure 7-1)

B. Tilt the rack to the desired elevation angle (15°, 25°, 35°, 45°, 55°, or 65°)and re-attach the Support Bar to the Strongback placing the 3/8” hardware inthe appropriate hole matching the desired elevation.(See Figure 7-2)

Torque to 32-34 ft.-lbs.

LoosenPivot Bolt

RemoveSupport ArmHardware(upper hardware only)

Figure 7-1: Preparing to Adjust the Tilt Angle

Figure 7-2: Setting the Tilt Angle

CAUTION:Do not attempt toremove the PivotBolt during tiltadjustments!Removal couldlead to seriouspersonal injury ordeath. Adjustmentsare made with thePivot Bolthardware loosenedbut in place.

CAUTION:This is a twoperson activity. Asthe Pivot Bolt isloosened and theSupport Barhardware isremoved, the rackis heavy andunstable. The rackmust be held inplace by oneperson while thesecond personloosens andremoves thehardware and thenre-installs/tightensthe hardware backin place. Failure todo so could leadto seriouspersonal injuryand damagedcomponents.

Elevation Set Points

Strongback SupportBar

65° 55° 45° 35° 25° 15°


4000-B Vassar Drive NE

Albuquerque, New Mexico 87107

USA

Telephone: 800.260.3792

Fax: 505.889.3548

Web Site: www.DPWSolar.com

E-mail: [email protected]

© 2011 Preformed Line Products

PCN 062811-2

Version 2, Rev C

top-of-pole mount for 8 modules (tpm8) for module type cthese are to assist in the assembly process...

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