14
L4442
7.2.4 Reaction Arm - Disassembly and Reassembly
(Fig. 16)
•
Disassembly
1.
To remove the wire assembly (36) that is securing
the reaction arm to the wrench body, first unscrew
the wire assembly nut followed by the rest of the
assembly (36).
2.
Remove the reaction arm assembly, including the
retaining plate (4), and shackle ring (38).
3.
Unscrew the two plate screws (35) and remove
retainer (24).
4.
Remove the grub screw (10), followed by the
retainer tab (15) and spring (16).
5.
If required, the shackle ring can be removed from
the reaction arm body by removing the eyebolt
assembly and separating the shackle ring arms.
6.
Clean all exposed components with a mild solvent.
7.
Inspect all parts for damage.
Replace any worn or
damaged parts.
•
Reassembly and Installation
1.
Apply silicon lubricate to all components, except
the two plate screws (35).
2.
Re-assemble the spring (16), retainer tab (15), and
grub screw (10), applying a small amount of Loctite
222 thread sealant on to the grub screw before
installing the assembly into the retainer plate (24).
3.
Fit the retainer plate (24) into the reaction arm body
(2), apply a small amount of Loctite 243 thread
sealant to the threaded mounting holes before
inserting plate screws (35).
4.
If removed, reattach the shackle ring (38), secured
into place with the eyebolt. Loctite 222 should be
applied to the thread of the eyebolt during assembly.
5.
Install the wire assembly (36) into the rear of the
piston sleeve. Slide the reaction arm (2) onto the
wrench body (1), threading the end of the wire
assembly (36) through the retainer plate (24) and
secure by screwing the hex nut onto the end of the
wire assembly (36).
7.2.5 Square drive Release Button Disassembly
and Reassembly (Fig. 17)
Disassemble the square drive release button
only if it is not operating properly or if it is worn or
damaged.
1.
Remove circlip (13).
2.
Separate the button mechanism (12) from the
retaining block (14).
3.
Clean all parts with a mild solvent. Dry all parts
after cleaning.
4.
Inspect all parts for damage.
5.
Reassemble retaining button assembly (12) and
bushing (14) and secure with circlip (13).
6.
Apply a thin coat of molybdenum disulphide grease
in the areas shown in Figure 10.
NOTICE
13
14
12
37
Figure 17: Exploded Square drive
38
✽
35
33
25
24
16
15
10
❇
2
❇
(eyebolt thread
only)
Figure 16: Exploded Reaction Arm
❇
Apply Loctite 222 Thread Sealant
✽
Apply Loctite 243 Thread Sealant
If a fault develops with the retaining button
assembly (12), the whole assembly will need to be
replaced. It is not recommended that this item be
disassembled.
NOTICE
