DeWalt XR DCGG581 Original Instructions Manual page 13

Cordless grease gun
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2. Unscrew the grease tube assembly 
and remove.
3. Gently release the grease tube handle 
empty cartridge from the grease tube.
Filling the Grease Gun from a Bulk Container
(Fig. A, F, H–I)
Preparing the Grease Gun for Suction and Filler
Pump Filling (Fig. A, H, I)
nOTE: Be sure the grease gun is empty of grease before
beginning this process.
1. Unscrew the grease tube 
assembly 
 13 
.
2. Push grease tube handle 
the rubber seal 
comes out from tube.
 28 
3. Using your thumb and forefinger, flip the rubber seal 
from the rear to the front. Refer to Fig. G.
nOTE: The seal resembles a cup, which should open toward the
motor housing
 5 
, (Fig. A) when prepared for suction and filler
pump filling.
4. Pull grease tube handle 
into grease tube 
 9 
.
Suction Filling from a Bulk Container
(Fig. A, F, H–I)
1. Put the open end of the grease tube assembly into the
bulk lubricant.
2. Slowly pull back the grease tube handle 
lubricant into the grease gun.
nOTE: Be sure to keep the open end of the grease tube
assembly far enough into the lubricant to prevent air pockets in
the grease tube.
3. When the grease tube rod 
into the retaining slot 
 14 
4. Remove the grease gun tube assembly from the bulk
lubricant and wipe off excess grease.
5. Screw the grease gun tube assembly 
grease gun.
6. Release the grease tube rod 
and slowly press it back into the tube.
7. Use the purge valve (
 24 
be trapped in the cartridge. Refer to Purging Air Pockets.
Filler Pump Filling From a Bulk Container
(Fig. A, F, H–I)
This tool comes with a 1/8" NPT fill port (
a low pressure fill coupler onto the unit.

WARNING: Never thread a high-pressure coupler
onto the grease gun's 1/8" NPT fill port. Serious injury
may occur due to excessive pressure. Use low‑pressure
couplers only.

CAUTION: The fill pump loader must connect correctly
with the grease gun's 1/8" NPT port. The filler pump may
not operate if the components are not compatible.
 13 
from the grease gun
 11 
to expel the
 9 
from the grease tube
 11 
toward the motor housing
 11 
and let rubber seal 
 28 
 11 
to suction the
 12 
is fully extended, secure it
 13 
back into the
 12 
from the retaining slot 
, Fig. E) to bleed off any air that may
 26 
, Fig. E) for attaching
installing The low Pressure Coupler (not supplied With
The Tool)
1. Thread the grease tube assembly 
gun and screw it in securely.
2. Pull the grease tube handle 
secure the grease tube rod 
moving the rod to the side. Ensure the rod is placed securely
in the slot to prevent it from disengaging.
3. Remove the 1/8" NPT fill port plug 
4. Thread the appropriate low pressure coupler onto the 1/8"
NPT fill port 
5. Release the grease tube rod 
and slowly press it back into the tube.
6. Use the purge valve 
 5 
,
trapped in the cartridge. Refer to Purging Air Pockets.
Filling The Tool From The low Pressure Filler Pump
 28 
(Fig. A, F, h—i)
1. Pull back on the grease tube handle slowly and rotate the
rod until it is secure in place.
nOTE: Do not lock the rod into the retaining slot 
2. Connect the low pressure fitting on the grease gun to the
go back
appropriate low pressure fitting on the filler pump. These
fittings DO NOT lock together. This prevents the grease gun
cartridge from being over filled.
3. Fill until the rod is pushed out of the grease tube
approximately 8" (20 cm). Do not overfill. If the rod fails to
move during the filling process, stop. This indicates that the
rod is not connected to the plunger and step one must be
repeated before proceeding.
4. Rotate rod to release and carefully push rod back into the
grease tube.
5. Use the purge valve 
trapped in the cartridge. Refer to Purging Air Pockets.
Purging Air Pockets (Fig. A, E)
iMPORTAnT: Air pockets in the grease can cause the grease
gun to lose prime. Eliminate air pockets after each refill or if the
grease gun fails to pump grease:
1. Unscrew the purge valve 
 14 
air has escaped.
2. Tighten the purge valve 
3. Uncap the flexible hose 
trigger switch 
4. If grease fails to flow through the hose, repeat from step 1.
nOTE: This tool has been tested at the factory, which may result
in a small amount of grease left in the grease tube and hose
assembly. It is recommended to purge the tool with the brand
of grease to be used before first use.
 13 
back into the grease
 11 
out as far as it will go, then
 12 
into the retaining slot 
 27 
 26 
.
 12 
from the retaining slot 
 24 
to bleed off any air that may be
 24 
to bleed off any air that may be
 24 
without removing it, until all
 24 
.
 6 
then depress the variable speed
 1 
for 10–20 seconds.
English
 14 
by
from the fill port.
 14 
 14 
.
11

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