Takata Racing RACE 4 SNAP - Manual (Page 4)

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Important Information About Bolts and Torques
B OLT D IAMETER
• Stock thread holes commonly are 7/16” 20 UNF. Therefore, all TAKATA
models come with bolts and eye-bolts matching this dimension.
• For all other dimensions you must provide the correct bolt diameter, type of
thread and bolt length. USE ONLY bolts grade 8.8 and higher.
•
Never use bolts of the wrong diameters or bolts that are too short
and may allow the bolts to become loose and separate from the
anchorages. Use of improper bolts will cause the racing harness
to fail.
• Never use bolts that are too long and may intrude into the fuel
tank or other parts of the car.
•
Always tighten bolts with the proper torque. Improperly
tightened bolts may loosen during harness belt use and may
become separated during a crash.
• Never over-tighten bolts. Over-tightening bolts may destroy the
thread and allow the bolt to separate during a crash.
• BOLT FAILURE MAY RESULT IN SEVERE INJURIES OR DEATH.
Never try to drill a larger bolt hole into any harness belt bracket.
The bracket is not designed for modifications and may stick to
your drill bit and the bracket and attached webbing and its
hardware may spin and may result in severe injuries or death.
T I G H T E N I N G T O R Q U E S B Y B O L T D I M E N S I O N
• Each bolt diameter and type of thread requires an individual torque for proper
tightening. The torque as listed below is defined by national or international
standardisation organisations.
•
For safe installation always tighten bolts to the recommended torque.
•
For any installation use e.g. “Loctite 243” or spring washers where
recommended to secure bolt fastening.
M 8 5/16” M 10 3/8”
7/16”
20 UNF
15/32” 1/2”
Torque in Nm 25 25 50 50 40 87 113
Torque in lbinch 18,5 18,5 37 37 30 64,5 83,5
C REATING A NEW ATTACHMENT POINT
• For new attachment points to the chassis heed the following WARNING box.
If you intend to drill a hole, make sure not to damage the fuel tank,
fuel lines, electrical wires, brake lines or other important
components. Any damage to such components can result in fire or
explosion and severe injuries or death can result.
• For new attachment points to the chassis you must use a FIA specified
reinforcement plate [see list of accessories in TAKATA catalogue].
•
Drill a hole of 12 mm [15/32”] diameter for lap- & shoulder belt and 5-point
anti-sub strap attachments.
• Use with this product supplied bolts and eyebolts only! They are tested for
quality and fit to the threads provided by the TAKATA reinforcement plate and
to the brackets.
I N I T I A L R E S T R AI N T A D J U S T M E N T D U R I N G I N S T AL L AT I O N
While first installing your racing harness the following items may require minor
adjustments to the belts.
• Shoulder belt tilt lock adjusters must be positioned minimum of 250 mm
(10”) below the collar bone or lower if possible.
•
If a Head and Neck Support is worn, the adjuster must be positioned low on the
yoke end of the Head and Neck Support.
•
Lap belt tilt lock adjusters must not be positioned within the openings of the
seats. Adjusters must be either outside of the seat at a minimum distance of
40 mm (1.5”) from the opening or close to the rotary buckle inside the seat.
Any drilled hole for racing harness attachment must be strengthened by a
reinforcement plate meeting FIA specification
TAKATA recommends, whenever possible and suitable, the use of existing
factory provided anchor points for the lap- and shoulder belts.
1. W RAP S YSTEMS TO ROLL BAR INSTALLATION AND
BRACKETS ASSEMBLY
2. 3- BAR SLIDE WRAP
This installation is commonly used for
•
shoulder strap roll cage installation and
• to assemble open strap ends to brackets or approved harness hardware.
Do not install a lap belt directly to a roll cage by wrap around technique.
Racing harness with end brackets assembled to the shoulder belts by a 3-bar
slide allow to dismount the brackets and use the 3-bar slide for wrap around
installation directly to the roll cage. Also brackets can be exchanged e.g. from a
snap-on to a bolt-in bracket or vice versa.
I N S T A L L A T I O N