Atlas Copco PHD 26 Guida all'installazione

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Special Tools

Required

■

Pressing-in tool 276 8000

■

Assembly tip 283 5000

■

Assembly cone 283 1000 (PH 350 (D)/ PH (D) 38)

■

Assembly cone 283 1100 (PH 240 D/ PHD 26)

■

Assembly and

disassembly sleeve 283 4600

Important!

■

Before beginning the maintenance work, perform an initial check with a high voltage test according

to VDE (see chapter Electrical and Mechanical Test Instructions).

■

Before all repair work, pull the power plug from the socket!

Disassembly

Dismantling the

nosepiece

Fix the machine vertically in a holding

device.

2Loosen the Allan screws (3) and remove

the nosepiece (1).

3Remove the disk springs and the two

washers.

4Remove the bearing end plate (2). If

necessary, hit it lightly with a plastic

hammer.

Dismantling the

intermediate gear 1Remove the washer (3) as well as the O-

ring.

2To expel the snap die (2) lightly hit the

housing with a plastic hammer.

3Remove the intermediate gear (1)

together with the disk.

4Remove the pins (4).

2 3

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Dismantling the

cylinder sleeve

Remove the pillow block (4) of the

reduction gear shaft as well as the sleeve.

2Only applicable for "D"-models:

Completely remove the switch lever (1)

and the selector shaft (2). Disassemble

the selector shaft.

3LoosentheAllanscrews(5).Lightlyhitthe

gearcase witha plastichammer. Remove

the cylinder sleeve together with the

percussion body (3). Pull the percussion

body from the cylinder sleeve.

Dismantling the

reduction gear

shaft

1Remove the screws and completely

remove the reduction gear shaft together

with the coupling, the distance sleeve (1)

and the holding ring (2).

2Press the locking ring from the reduction

gear shaft with aid of a special tool and

dismantle the reduction gear shaft.

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Dismantling the

motor

Remove the brush holders (1) from the

machine. Remove the screw of the

retaining clip (8). Remove the retaining

clip and the carbon brushes.

2Remove the gear case from the motor

housing.

3Remove the complete motor from the

armature (4). Remove the gear.

4Expel the armature (4) from the gear case

with aid of a plastic hammer.

5Remove the screws and the cover (6) with

the gasket. Lever off the piston together

with the connecting rod (5).

6Unscrewthe eccentricwheel shaft(7) and

hit it until it comes free. If necessary, use

a plastic hammer.

7Separate the eccentric, the bearing, the

ball bearing, the locking ring, and the

pinion from the eccentric wheel shaft (7)

by pressing.

8Lever off the air conduction ring (2).

9Lightly hit the electric field (3) to remove it.

Dismantling the

On/Off switch 1Unscrew and dismantle the pair of handle

shells (1).

2Unscrew and dismantle the switch (3), the

capacitor (2), and other electric parts.

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Maintenance

General

It is recommended to regularly submit the tool to maintenance, or as soon as the hammer mechanism

gets weak, or when the carbon brushes switch off. When carrying out maintenance all parts of the

maintenance set must be exchanged. Use the respective maintenance set provided for each machine.

Cleaning

Clean all parts – with the exception of the electrical parts – with cold cleaning agent.

Caution!

cleaning agent should penetrate into the bearing. Clean the electrical parts with a dry brush.

Check for wear

Check the disassembled parts for wear (visual inspection) and replace worn parts.

Electrical tests

Before reassembling, perform an electrical test on all relevant parts (see chapter Electrical and

Mechanical Test Instructions).

Lubrication

Each time maintenance is performed, the machine is to be lubricates as stated in the lubrication plan.

After the machine is fully disassembled, completely remove the old grease and replace with new

grease. The grease must be applied to the machine as indicated in the lubrication plan.

Legend

Cover generously

Filling

Torques

Screws M 4 3 Nm

Screws M 5 6 Nm

A BA A A A

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Assembly

Assembling the

On/Off switch

Fix the switch (3), the capacitor (2), and

the other electric parts with screws.

2Mount the pair of handle shells (1).

Mounting the

motor 1Insert the electric field (3) into the motor

housing (mind the right position!).

2Insert the air conduction ring (2) and let it

engage.

3Press on the eccentric, the bearing, the

ball bearing, the locking ring, and the

pinion (flush) with aid of a press and a

forcing disk.

4Presstheeccentric(7)inthe gear box and

secure it with screws (the screws must be

covered with securing device). Insert the

sealing ring.

5Half insert the piston (5) into the cylinder,

and insert the cylinder into the gear case.

At the same time hang up the connecting

rod in the eccentric wheel shaft. Secure

the cover (6) with screws.

6Insert the armature (4) into the gear case.

If necessary, hit it lightly with a plastic

hammer.

7Insert the gear case together with the

armature into the motor housing.

8Fix the gear case to the motor housing

with screws. Fasten the screws

diagonally.

9Re-assemble the pair of carbon brushes,

theretainingclip(8),andthecarbonbrush

holders (1).

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Mounting the

reduction gear

shaft

Press the ball bearing on the reduction

gear shaft (4) and secure it with the

locking ring.

2Press the distance sleeve (5), the two

needle bearings, the spring plate (2), the

spring, the coupling sleeve, and the

coupling on the reduction gear shaft.

3Mount the reduction gear shaft, the balls,

and the ring.

4Fix the ring (3) to the reduction gear shaft

applying pressure, with aid of the

pressing-in tool No. 276 8000.

5Mount the reduction gear inside the gear

case and fit the retaining ring. Only

applicable for "D"-models: Fit the sleeve

(1).

6Fill in grease according to the lubrication

chart and mount the end bracket

(completely with the ball bearing).

Mounting the

cylinder sleeve 1Insertthecylinder sleeve into the machine

and secure it with the screws (5).

2Insert the percussion body (3). Mind the

right position!

3Only applicable for "D"-models: Complete

and assemble the switch rod (2). Take

care that the lug of the switch rod grasps

thegroove of the sleeve.Mount the switch

lever (1).

4Mount the pillow block (4) provided for the

reduction gear shaft and the sleeve.

Mounting the

intermediate gear 1Inserttheretainingring,thewasher(3),as

well as the O-ring.

2Insert the intermediate gear (1) and the

snap die (2) into the machine.

2 3

PAGE

Repair Instructions No. 162.11/95

PHD 26/ PH(D) 38/ PH 240 D/ PH 350 (D)

Mounting the

nosepiece

Fit the bearing end plate (2). If necessary,

with aid of a plastic hammer.

2Insertthewasher.Firstinsert a pair of disk

springs with the vault facing upward, then

one pair facing downward, and again one

pair facing upward. Insert another washer.

3Fit the gasket. Mount the nosepiece (1)

and secure it with the Allan screw.

Test Run

Electrical Test

Test run the machine and pay attention to noises.

Check the direction of rotation!

Let the machine run-in.

Carry out a percussion test.

Perform an electrical test on the machine (see chapter Electrical and Mechanical Test Instructions).

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