Instruction Manual

www.tigerlifting.com
Home of the Tiger hoisting, clamping, winching and height safety ranges
Our innovation, your safety
11 May 2021 Page 3 of 8
HOISTING
Safety Brake:
The highly efficient and fully corrosion protected brake system works instantly when the operation is stopped and
securely holds the load. Loads are lowered under perfect control, allowing for precise operations. The PROCB easily
passes the “brake lock out test” as per BS 3243:1990 with a 2% load of the rated capacity.
Lifting at Angles:
The PROCB range of chain blocks fitted with the patented
protected Quad Cam Brake System has undergone a full and
comprehensive testing regime that was drawn up by industry
specialists and Tiger’s mechanical engineers to provide
evidence that these units can be safely used for “fleeting”,
“drifting” and “cross-hauling” applications up to 45° from the
vertical without deration. Note: All such operations should be
carried out in accordance with manufacturer’s instructions and
fully risk assessed by a competent person.
With a conventional twin pawl brake mechanism (teardrop
design) failure can occur if the pawl spring erodes, fractures or
a shock load bounces the pawls out of the ratchet gear.
Without the spring these systems rely on gravity keeping the
pawls engaged and are flawed when the hoist is used at angles
away from the vertical.
Hand Wheel:
For chain blocks to be used up to an angle of 45 degrees, it’s
critical that the hand chain leaves and enters the hand wheel
without twisting, snagging or jamming. Thanks to our specially
designed deep-profile chain block hand wheel this is achievable as
it helps to seat the chain no matter what angle or direction of pull.
Adaptor Components:
Drop forged adaptor maintaining maximum strength. 360°
Rotation and 180° Pivot for Maximum Flexibility. Tested and certified to 4:1 factor of safety.
Self-locking (safety) hook, clevis shackle, reevable egg (master) link or sling hook fittings available (for units up to
10t capacity).
100% WLL