Huck ERT7, Инструкция по эксплуатации

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8
ERT7 and ERT8 Ebbert Rivet Tools (HK1061)
Disassembly
Close attention must be directed to the recommended
service procedures contained in this manual. Specific
instructions for each tool are given under that tool model
number heading. While the tools look similar, each tool
contains parts not used on the other models and removal
and replacement methods will vary. For component
identification, see Figures 2 and 3.
NOTE: The following procedure is for complete
disassembly of the tools. Disassemble only those
components necessary to replace damaged O-rings,
seals, Back-up rings, and worn and damaged
components. Disconnect the tool from the Power
Source prior to disassembly.
Removing the Hose Assembly
1. ERT7 : Remove the guard. (Figure 2)
2. ERT7 & ERT8 : Remove the pintail tube from the
pulling head assembly. Remove the cable attachment
from the cylinder base. Pull the heavy plastic sleeve
off the air-line connector. Press the red collet on the
air-line connector and pull the air-line out of the
connector. (Figures 2 & 3)
Rivet Tool Disassembly (Figures 2 & 3)
1. Remove the Pulling Head Assembly from the tool;
remove all nicks and burrs from front of Piston Rod
Assembly.
2. ERT7 : Remove the four screws and the piston rod
guide from the front of the tool. (Figure 2)
ERT8 : Remove the four screws and handle from the
front of the tool. (Figure 3)
3. Push Piston Assembly to full-back position, and
remove the retaining ring from the rear of the Piston
Assembly. NOTE: Remove all nicks and burrs from
the rear of the piston to ensure removal of the end
cap and Double Piston without damaging them .
4. Remove the four screws, Support Loop Assembly, and
end cap from rear of tool .
5. Remove the retaining ring from the rear of the Double
Piston. Pull the Piston Assembly out through the front
end of the tool.
6. Push out the Double Piston and Bulkhead through the
rear of tool. NOTE: It is not necessary to remove
the retaining ring from the cylinder .
CAUTION: Before performing any maintenance,
disconnect the tool’s hoses from the Power
Unit.
Assembly
This procedure is for the re-assembly of the ERT7 and
ERT8 tools . For component identification, see Figures 2
and 3. NOTE: Clean components with mineral spirits,
or similar solvent.
Inspect for wear/damage and replace as necessary.
Replace all seals of disassembled components. Use
O-rings, Quad-rings and Back-up rings in Service Parts Kit
ERT5S7KIT or ERT8KIT. Coat O-rings, seals, Back-up rings,
and mating parts with conventional O-ring lubricant to
ease assembly. Assemble tool taking care not to damage
O-rings, seals, or Back-up rings. NOTE: Install retaining
rings with sharp edge of the retaining ring toward the
rear of the tool. When replacing seals, make sure they
are correctly positioned as shown in the Assembly
Drawing.
1. Wipe all seals with a thin film of lubricant before
reassembly.
2. Inspect the cylinder wall to ensure the surface is free
of gouges and nicks that will damage a new seal.
Small nicks and gouges can normally be removed
using a fine crocus cloth.
3. Install the bulkhead into the rear of the cylinder until
it seats flat against the retaining ring in the center of
the cylinder.
4. Upon ensuring that there are no nicks or burrs on
the front or rear of the Piston Assembly, insert the
assembly into the front of the tool, and push it to the
full back position.
5. Install the Double Piston onto the rear of the Piston
Rod Assembly and into the cylinder until it bottoms
on the shoulder of the Piston Assembly.
NOTE: Before placing the cylinder assembly on top of
the handle assembly, ensure the O-rings are in place
at the top of the handle assembly.
6. Install the retaining ring at the back of the Double
Piston with the sharp edge of the snap ring toward
the rear of the tool.
7. Install the r ubber bumper on the front end of the
Piston Rod Assembly.
8. ERT7 : Install the Piston Rod Guide and two bearing
plates, and secure with four screws. Torque the screws
to 60–80 inch pounds. (Figure 2)
ERT8 : Install the handle and two bearing plates, and
secure with four screws. Torque the screws to 60–80
inch pounds. (Figure 3)
9. Install the end cap and support loop assembly on the
rear of tool and secure with the four screws. Torque
the screws to 60–80 inch pounds.
NOTE: When the tool is used without the support
loop assembly, two additional screw bearing plates
are required between the end cap and the screws.
10. Install the snap ring on the back of the piston
assembly with sharp edge of snap ring toward the
rear of the tool.
The Pulling Head Assembly and Hose Assembly can now
be installed.