DeWalt DCMASPS5 - Chain Tension, Replacement, and Oiling; Chain Tension Adjustment and Replacement; Chain and Guide Bar Oiling

12
ENGLISH
Saw Chain and Guide Bar Oiling (Fig. I)

WARNING: If the oil reservoir runs empty, or the chain
fails to get proper oil lubrication during use, the chain will
overheat and cause damage to the unit and may result
serious personalinjury.

WARNING: Lack of proper bar and chain oiling can cause
excessive heat from friction and can cause the chain to
come off the bar whileoperating.
Auto Oiling System
This chain saw is equipped with an auto oiling system that
keeps the saw chain and guide bar constantly lubricated. The oil
reservoir
9
shows the level of the oil. If the oil level is less than
a quarter full, remove the battery from the powerhead and refill
the oil reservoir
9
with the correct type of oil. Always empty the
oil reservoir
9
when finishedcutting.
NOTE: Use a high quality bar and chain oil for proper saw chain
and bar lubrication. As a temporary substitute, a non-detergent
SAE30 weight motor oil can be used. The use of a vegetable
based bar and chain oil is recommended when pruning trees.
Mineral oil is not recommended because it may harm trees.
Never use waste oil or very thick oil. These may damage
yourchainsaw.
Filling the Oil Reservoir
1. Unscrew counterclockwise and then remove the oil cap
4
.
Fill the oil reservoir 
9
with the recommended bar and
chain oil untilfull.
2. Refit the oil cap and tightenclockwise.
3. Periodically switch the tool off and check the oil level to
ensure the bar and chain are being properlyoiled.
Adjusting the Auto Oiling System

WARNING: To reduce the risk of serious personal
injury, turn tool off and disconnect battery pack
before making any adjustments or removing/
installing attachments or accessories. An accidental
start‑up can causeinjury.
The oil adjustment screw 
10
is located on top of the gearbox
assembly
24
.
1. Insert the supplied 2.4 mm hex wrench 
15
into the oil
adjustment screw
10
.
guide bar
6
to recede and reduces the tension on the chain
so that it may beremoved.
2. Place the pole saw on a flat, firmsurface.
3. Remove sprocket cover
2
as described in Installing the
Guide Bar and Saw Chainsection.
4. Wearing protective gloves, grasp the saw chain and lift the
worn saw chain out of the groove in the guidebar.
5. Flip guide bar over every time you replace the chain to
ensure evenwear.
6. Place the new chain in the slot of the guide bar, making sure
the saw teeth are facing the correct direction by matching
the arrow and graphic of the saw chain on the sprocket
cover
2
shown in FigureD.
7. Follow instructions for Installing the Guide Bar and
SawChain.
Replacing the Saw Chain (Fig. D, E)

CAUTION: Sharp chain. Always wear protective gloves
when handling the chain. The chain is sharp and can cut
you when it is notrunning.

WARNING: Sharp moving chain. To prevent accidental
operation, ensure that battery is removed from the tool
before performing the following operations. Failure to do
this could result in serious personalinjury.
1. To remove the saw chain
7
, rotate the chain tensioning
screw
8
in the front of the housing using a flat-head
screwdriver. Turning the screw counterclockwise allows the
Adjusting Chain Tension (Fig. A, E, G, H)
NOTE: Saw chain tensioning should be adjusted regularly
before eachuse.
1. With the pole saw still on a firm surface check the saw
chain
7
tension. The tension is correct when the saw chain
snaps back after being pulled 3mm away from the guide
bar
6
with light force from the middle finger and thumb as
shown in FigureG. There should be no “sag” between the
guide bar and the saw chain on the underside as shown in
FigureH.
2. To adjust saw chain tensioning, loosen bar lock nuts
3
as described in Installing the Guide Bar and Saw
Chainsection.
3. Rotate the chain tensioning screw
8
in the front of the
housing using a flat headscrewdriver.
4. Check the saw chain tensioning, adjust ifneeded.
5. Do not over-tension the saw chain as this will lead to
excessive wear and will reduce the life of the guide bar and
saw chain. Overtensioning also reduces the amount of cuts
you will get per batterycharge.
6. Once saw chain tensioning is correct, tighten bar lock
nuts
3
untilsnug .
7. A new chain stretches slightly during the first few hours of
use. It is important to check the tension frequently (after
disconnecting battery) during the first 2hours ofuse.
8. Place the saw chain around the sprocket
21
. While lining
up the slot on the guide bar with chain tensioning pin
22
,
and the two bar retaining bolts
23
, on the base of the tool
as shown in FigureF.
9. Once in place, hold the bar still, replace the sprocket
cover
2
. Make sure bolt holes on the cover lines up with the
two bar retaining bolts
23
, on the mainhousing.
10. Install the bar lock nuts
3
and rotate clockwise with
a 13mm wrench (not provided) until snug , then
loosen the nuts one full turn, so the saw chain can be
properlytensioned.
11. Rotate the chain tensioning screw
8
clockwise to increase
chain tension as shown in Fig.F. Make sure the saw chain
7
is snug around the guide bar
6
. Tighten the bar lock nut
3
untilsnug .
12. Follow the instructions in the section Adjusting ChainTension.