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CLEARSPAN
™
JOB MASTER BUILDINGS
8
Revision date: 07.23.09
ASSEMBLE AND POSITION MAIN FRAME BASE RAILS
(CONTINUED)
ATTACH 104624 FITTINGS (RAFTER FEET)
Gather the parts:
• Assembled base rails
• 1-Way square tube fittings (#104624)
• Tek screws and magnetic nut setter (3/8'' x 2-9/16")
• Tape measure and marker
NOTE:
Before attaching the 104624 fittings, position
the base rail so the heads of the Tek screws face to the
outside, which will be toward the outrigger frame when
these are installed.
Do not position the rail with the Tek
screws on the top, bottom, or inside of the rails. Doing so
may interfere with the installation of the #104624 fittings
and metal panels.
1. Using Tek screws, attach the first square tube fitting
(#104624) to the top of the base rail flush with the end
of the base rail as shown.
2. From the center of the installed square tube fitting
(#104624), measure and mark 48" increments along
the length of the base rail. These marks represent the
4' on-center rafter positions.
3. Center a square tube fitting (#104624) on each mark
and secure the fitting to the base rail using Tek screws.
4. Repeat the steps for the remaining base rail.
NOTE:
Rafter spacing is measured center-to-center.
5. Position base rails on the site where the shelter will be
assembled. Space rails at the approximate width of the
shelter.
ATTENTION:
Do not anchor the rails to the site at this
time.
6. After the base rails are assembled, continue with the
MAIN FRAME RAFTER ASSEMBLY.
48"
center-to-center
#104624
Square Tube
Fitting
Center of the fitting
Tek screws
MAIN FRAME RAFTER ASSEMBLY
Gather the parts:
• Rafter pipe ( #12CP20P1)
• Rafter pipe (#18CP20P3)
• Rafter pipe (#S20P036 & #S20P048)
• 3-Way Square tube fittings (#104626)
• 4-Way Square tube fittings (#104627)
• Tek screws and magnetic nut setter (3/8'' x 2-9/16")
Main Frame Rafter Assembly Procedure
Each rafter assembly consists of seven (7) rafter tubes: one
(1) curved center pipe (for the top or peak), two (2) bent leg
pipes, two (2) straight pipes between the peak and the bent
leg pipes, and two (2) straight pipes.
NOTE:
The different end rafter tubes are connected using
3-Way tube fittings (upper rafter) and square tube insert
(#104075) for the rafter legs (lower).
Interior or mid rafters use 4-Way tube fittings in place of
the 3-Way tube fittings used for the end rafters.
#18CP20P3
#12CP20P1
#S20P036
#S20P048