INFORM A RIGGER — PASS THE WORD PAGE
1__________________________________________________________________________________________________________________
Copyright © Gunnebo Johnson CorporationAll rights reserved
12/2016P/N 69749
AdditionallyPile Driving and Pile Extracting are applications
approved for existingGunnebo Johnson Model "J- Block" Crane Blocks
equipped with CheekWeights secured at the base with a capscrew(s)
as shown in figure 1 &2, PROVIDED;
1) EXISTING "A" CAPSCREWS HAVE BEEN REPLACED with anappropriate
"B" capscrew kit. (see Replacement Procedure below)2) 80% of WLL
given on the crane block identification tag is notexceeded and3)
Impact loading is precluded and4) Each day before use, the crane
block and its fasteners and attachmentsshall be inspected for
damage or defects by a competent persondesignated by the employer
with additional inspections performedduring crane block use where
service conditions warrant and5) All associated equipment is
operated within the crane manufacturerguidelines.
Capscrew(s) replacement procedure;1) Contact Gunnebo Johnson
Customer Service with crane block serialnumber or other identifying
information to obtain appropriate capscrewfield replacement kit.2)
Remove “A”capscrew(s) and lock washer from crane block
cheekweights3) Remove any corrosion or contamination from side
plate threads.4) Assemble lock washer to “B” capscrew.5) Apply
Loctite Threadlocker #263 to the threads of “B”capscrew(s)6)
Install “B” capscrew into side plate as shown in Figure 3 and
tightento 10 -15 Ft. - Lbs.7) Allow 24 hours for Loctite to cure
before returning block to service.
Gunnebo Johnson Application AdvisoryFor
Gunnebo Johnson Crane Blocks used in Pile Driving and Pile
Extraction service.
Pile Driving and Pile Extracting are applications approved for
existing Gunnebo Johnson Model "J-Block" Crane Blocksequipped
without Cheek Weights and with Cheek Weights attached by all four
tie bolts and for all Gunnebo Johnson Model"QRJ" Crane Blocks
equipped with or without Cheek Weights , PROVIDED;
Figure 3
ExistingCapscrew &Lock Washer
"A"
1) 80% of WLL given on the crane block idenfication tag is
notexceeded and2) Impact loading is precluded and3) Each day before
use, the crane block and its fasteners and attachmentsshall be
inspected for damage or defects by a competent persondesignated by
the employer with additional inspections performedduring crane
block use where service conditions warrant and4) All associated
equipment is operated within the crane manufacturerguidelines.
For assistance and answers to questions pleasecontact Gunnebo
Johnson customer service at918-832-8933 or [email protected]
"J-Block"Crane Block
with CastWeights
Figure 1
"J-Block"Crane Blockwith SteelWeights
Figure 2
ExistingCapscrew &Lock Washer
"A"
Cheek Weight
ReplacementCapscrew &Lock Washer
"B"
Reduced Body
LoctiteThreads
Side Plate
NoMarking
NoMarking
Grade5
Grade5
Grade8
or
or
INFORM A RIGGER — PASS THE WORD
PAGE 1
__________________________________________________________________________________________________________________
Copyright © Gunnebo Johnson Corporation
All rights reserved
12/2016
P/N 69749
Additionally
Pile Driving and Pile Extracting are applications approved for
existing Gunnebo Johnson Model "J- Block" Crane Blocks equipped
with Cheek Weights secured at the base with a capscrew(s) as shown
in figure 1 & 2, PROVIDED;
1) EXISTING "A" CAPSCREWS HAVE BEEN REPLACED with an
appropriate "B" capscrew kit. (see Replacement Procedure
below)
2) 80% of WLL given on the crane block identification tag is
not exceeded and
3) Impact loading is precluded and
4) Each day before use, the crane block and its fasteners and
attachments shall be inspected for damage or defects by a competent
person designated by the employer with additional inspections
performed during crane block use where service conditions warrant
and
5) All associated equipment is operated within the crane
manufacturer guidelines.
Capscrew(s) replacement procedure;
1) Contact Gunnebo Johnson Customer Service with crane block
serial number or other identifying information to obtain
appropriate capscrew
field replacement kit.
2) Remove “A”capscrew(s) and lock washer from
crane block cheek weights
3) Remove any corrosion or contamination from side plate
threads.
4) Assemble lock washer to “B” capscrew.
5) Apply Loctite Threadlocker #263 to the threads of
“B”capscrew(s)
6) Install “B” capscrew into side plate as shown in Figure
3 and tighten to 10 -15 Ft. - Lbs.
7) Allow 24 hours for Loctite to cure before returning
block to service.
Gunnebo Johnson Application Advisory
For
Gunnebo Johnson Crane Blocks used in Pile Driving and Pile
Extraction service.
Pile Driving and Pile Extracting are applications approved
for existing Gunnebo Johnson Model "J-Block" Crane Blocks equipped
without Cheek Weights and with Cheek Weights attached by all four
tie bolts and for all Gunnebo Johnson Model "QRJ" Crane Blocks
equipped with or without Cheek Weights , PROVIDED;
Figure 3
Existing
Capscrew &
Lock Washer
"A"
1) 80% of WLL given on the crane block idenfication tag is not
exceeded and
2) Impact loading is precluded and
3) Each day before use, the crane block and its fasteners and
attachments shall be inspected for damage or defects by a competent
person designated by the employer with additional inspections
performed during crane block use where service conditions warrant
and
4) All associated equipment is operated within the crane
manufacturer guidelines.
For assistance and answers to questions please contact Gunnebo
Johnson customer service at 918-832-8933 or [email protected]
"J-Block"
Crane Block
with Cast Weights
Figure 1
"J-Block"
Crane Block
with Steel Weights
Figure 2
Existing
Capscrew &
Lock Washer
"A"
Cheek Weight
Replacement
Capscrew &
Lock Washer
"B"
Reduced Body
Loctite
Threads
Side Plate
No
Marking
No
Marking
Grade
5
Grade
5
Grade
8
or
or
