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Jack
Jack
Jack
Jack
Jack
Jack
7. Reset Jack rafter Preference Settings:
On/C
On/C
Conv
Stor
Stor
Stor
Set Preference to "Descend":
+
(plus sign)
Set Preference to "Jacks On-center":
Stor
+
Exit Preference Settings:
On/C
*The stored On-center spacing is used as the maximum allowable spacing. Therefore, it is assigned to the side
with the largest entered pitch. In this example, the "Irregular" side pitch is larger than the "Regular" side pitch;
thus, the Irregular side is calculated using the maximum On-center value (16 Inches). If the Regular pitch side
had the larger pitch, it would require the larger (16 Inches) On-center.
RAKE-WALL - NO BASE
Example: Find each stud size in a Rake-Wall with a peak (rise) of 5 Feet, and a length (run) of 10
Feet. Use 16 Inches as your spacing.
5' Rise
Note: The wall has no base.
KEY INPUT & DISPLAY
1. Enter Rise and Run and display o.c. spacing:
On/C
On/C
5
Rise
Feet
1
0
Feet
Run
5 *
Rcl
*If 16-Inch is not displayed, enter
Stor
Stor
Stor
Stor
1
6
Inch
10' Run
.
5
Stor
Page 42
JK3 4
7-9/16
Feet
Inch
JK4 6
2-1/16
Feet
Inch
JK5 6
11-3/8
Feet
Inch
PLMB 30.26˚
LEVL 59.74˚
CHK1 48.81˚
0
JACK ASCEnd
JACK dESCEnd
IRJK JAC-JAC
IRJK OC-OC
0
0
RISE 5
0
Feet
Inch
RUN 10
0
Feet
Inch
OC
16
STORED
Inch
Cont'd on page 43
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