Dafra DRPB48V User manual

DRPB48V Operation Manual
PLEASE SPEND 2 MINUTES
READING THESE
INSTRUCTIONS BEFORE
USING YOUR NEW
PNEUMATIC RIVET TOOL.
TRUST US, IT WILL SAVE YOU
TIME AND INCONVENIENCE IN
THE LONG RUN.

DRPB48V Operation Manual
Read this manual carefully before use the tool!
It is IMPORTANT to follow the safety instructions for adequate protection
against injuries.
- This tool should be used exclusively to apply blind rivets as prescribed under TOOL
CAPACITY. It cannot be used for other purposes, such as hammer, etc.
- This tool should be always operated with compressed air supply within the air pressure
range 0,5Mpa ~ 0,7Mpa.
- Always DISCONNECT the air supply from the tool before changing the tool parts, such as
nosepiece, etc.
- DO NOT use the tool in the following environments:
- fuel and combustion air
- temperature rapidly rising
- humidity, rain, water, storm or thunder & lightening
- When the tool is suspended by the operation hook during use, be sure the tool will not fall.
- When using the tool, always use protective goggles, protective gloves, safety helmet, and
other necessary protections. It is highly recommended for safety reasons.
- Use only genuine spare parts for repairs.
- All repair work must be carried out by skilled personnel, when in doubt, always return the
tool to the distributor.
TOOL CAPACITY
Sets blind rivets: 3.0mm/3.2mm – 4.0mm – 4.8mm/5.0mm in all materials.
Optional 2.4mm setup available.
TOOL SPECIFICATIONS
Air supply pressure: 0.5Mpa ~ 0.7Mpa
Output traction power: 8,400 N ~ 11,760 N
Stroke: 0mm ~ 16mm
Net weight: 1.33 kgs

DRPB48V Operation Manual
SETTING UP THE TOOL
Please refer to the TOOL EXPLOSIVE ILLUSTRATION and the PARTS LIST included in this
manual in order to have a good understanding of the tool parts described. The descriptions of
the tool parts appear in this manual in italics with the parts position numbers corresponding to
the tool explosive illustration.
1) This pneumatic powered tool should be used with compressed air supply. It is recommended
to use the air hose with diameter bigger than 8 mm.
2) Check that the compressed air pressure is within the specified range between 0.5Mpa and
0.7Mpa, before connecting the air hose onto the tool air adaptor (#52). The air adaptor has
different versions in different countries and areas. Normally the tools are equipped with the
correct version, however if the air adaptor supplied does not match your air supply hose,
contact the tool distributor(s).
3) Change and use correct nosepiece (#1) according to the size of the rivet to be set. This tool
is equipped with nosepieces 3.0mm/3.2mm, 4.0mm and 4.8mm/5.0mm (on the tool) in the
kit. Follow the steps below to change the nosepiece (#1):
a) Remove the air supply hose from air adaptor (#52);
b) Use the wrench (in accessories pack) to remove the nosepiece (#1) from the tool:
a) Select the correct nosepiece in accessories pack and screw on to the tool, using the
wrench to fix it firmly on the tool.
4) To install the mandrel collector (#24, in accessories pack) on the back of the tool.

DRPB48V Operation Manual
TOOL OPERATION FOR SETTING BLIND RIVETS
1) After completing the start-up preparations, place the rivet mandrel into the nosepiece, and
holding the tool to insert the rivet into the pre-drilled hole of the work piece that needs to be
fastened.
2) Pull the tool trigger (#48) to set the blind rivet in its position on work piece.
3) After setting the rivet, the vacuum will suck the mandrel into the mandrel collector (#24)
automatically. Be sure to empty the mandrel collector (#24) regularly – half-full is full -
otherwise the tool will not release additional mandrels properly. While using the tool, be sure
always with the mandrel collector (#24) on the tool, in case a mandrel comes shooting out
from the back and causes injuries.
4) The force of the vacuum can be adjusted higher or lower by turning the knob on back of the
tool visible when the mandrel collector (#24) is removed:
5) The air adaptor hose (#53) provided with this tool has a sliding switch to pause the air supply.
TOOL MAINTAINANCE
In order to maintain optimum performance after several weeks of regular use, add a few drops
of hydraulic oil on the inlet of the air adaptor (#52)of the tool in order to reduce the friction of
the tool parts since the oil will be blown inside the tool when tool is in operation.

DRPB48V Operation Manual
After a period of use, the tool stroke may be reduced which indicated that the hydraulic oil in the
pneumatic tool needs to be refilled or changed;
1) Remove the screw (#11)with a hexagon wrench:
2) Connect the air supply and to place a cloth over the hole where the screw (#11)was
removed, then to pull the trigger (#48)and the oil will be forced out from the tool;
3) Screw the oil inject adaptor (in oil injector set in the accessories pack) into the hole where
screw (#11)was removed;

DRPB48V Operation Manual
4) Use the oil injector (in the accessories pack) to slowly inject the oil until full (approx. 15ml).
Remove the injector and its adaptor, then clean off any excess oil on the tool and tightly
screw the screw (#11)back into the tool;
5) Test the tool stroke. If the stroke is still not what it should be, some air could have entered
the oil cylinder (#13) while refilling the oil in the tool. To release this extra air from the tool,
connect the tool to the air supply, pull the tool trigger (#48)6 or 7 times, then loosen the
screw (#11), to let the extra air leak out and then tighten the screw (#11)again.

DRPB48V Operation Manual
After extensive use, the tool may accumulate small metal chips from rivets within the nose
assembly of the tool. This will compromise the tool’s efficiency; therefore, it is recommended
that you clean or change the nose assembly parts periodically.
1) Use the wrench (in accessories pack) and a spanner provided by user;
Included in accessories kit
Provided by user
Wrench hole 1 for compressed spring pedestal (#19);
Wrench hole 2 for clamping sleeve (#3);
Wrench hole 3 for nosepieces (#1);
Wrench hole 4 for front sleeve (#2);
2) Remove the nosepiece (#1) on the tool using the wrench included in the kit;
3) Disassemble the front sleeve (#2):

DRPB48V Operation Manual
4) Disassemble clamping sleeve (#3):
5) Take out the 3-jaw set (#4) from the clamping sleeve (#3), then remove the assembly pusher
(#5),the pusher spring (#6) and mandrel tube (#20) from the tool. Once removed, inspect
all parts for wear before cleaning and replacing them. Any damaged parts should be
replaced at this time.
6) Re-assemble the cleaned or replacement parts. Put the pusher spring (#6) onto the
assembly pusher (#5) and insert it back to the tool where assembly oil cylinder (#13) is
located

DRPB48V Operation Manual
7) Place the 3-jaw set (#4) into the clamping sleeve (#3) and be sure that all 3 jaws are seated
in the correct position
8) Place the clamping sleeve (#3) with the 3-jaw set (#4) inside it onto the assembly pusher
(#5) and ensure it is assembled firmly
9) Replace the front sleeve (#2) and nosepiece (#1) on the tool:

DRPB48V Operation Manual
TROUBLE SHOOTING
Troubles
Possible Causes
Solutions
Rivet mandrel does not break
1. 3-jaw set worn or damaged.
2. Insufficient hydraulic oil in
tool.
3. Air supply with low pressure.
1. Change 3-jaw set.
2. Refill hydraulic oil.
3. Increase air supply pressure
within the specified range.
Jaws slipping on rivet
mandrel
1. 3-jaw set worn.
2. Metal chips between jaws.
3. Pusher spring fatigued.
1. Change 3-jaw set.
2. Clean the jaws.
3. Change pusher spring.
Rivet mandrel cannot be put
into nosepiece
1. Wrong size nosepiece used.
2. Jaws stuck due to mandrel
not releasing.
1. Change to correct size
nosepiece.
2. Disassemble the front sleeve
and clamping sleeve to
remove stuck mandrel.
Mandrel cannot be sucked
into mandrel collector
properly
1. Insufficient vacuum power for
mandrel release.
2. Air supply with low pressure.
1. Increase the vacuum power
to the mandrel release, refer
to TOOL OPERATION
section 4.
2. Increase air supply pressure
within the specified range.