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7

Service and Repair Manual

Model 2500V

1.

Remove the four pozi-screws from the switch cover
(7) and remove the cover.

2.

Remove the switch seal (6) from the switch.

3.

Pull the switch (5) from its location. Disconnect the
two motor leads and the two power leads. Remove
the two pozi-screws from the cord grip and remove
the power lead.

4.

Remove the switch sleeve (8), switch box (4) and
remove the O-ring seal.

1.

Remove the slot head screw (4) and brush cover (3).

2.

Remove the pozi-screw (2) and dished washer (5)
from the brush holder gently pull out the brush (1).

3.

Repeat the  procedure for the brush on the opposite
side.

1.

Pull off the layshaft gear (1), remove the thrust
bearing assembly (3) and thrust washer (14).

2.

Press out the needle roller bearings (2) from the
layshaft gear. ( see service tool  list).

3.

Secure crankshaft (10) to prevent rotation, remove
the lock nut (5) disc spring washer (6) and  lever off
the crankshaft gear (7) from square key (9), remove
square key (9).

4.

Remove the three capscrews (11) from the
crankshaft housing (8) and lever the housing off the
crankshaft, (it may be necessary to gently tap the
threaded portion of the crankshaft with a nylon
hammer to loosen the assembly). Remove crankshaft
(10) and connecting rod assembly from main
casting.

5.

Remove three capscrews (12) and remove the
layshaft carrier (4).

Removing the
switch

Removing the
brushes

Dismantling
the gear
assembly

1

3

2

4

6

5

7

1

3

2

5

4

1

3

2

5

7

6

8

1 1

9

1 0

4

14

Fig. 6

Fig. 7

Fig. 8

12

8

Содержание 2500

Страница 1: ......

Страница 2: ...CRANKSHAFTNEEDLEBEARING 17 9170 0230 30 ASSEMBLY ARMATURE SEAL ASSY 18 9170 0738 00 ASSEMBLYCRANKSHAFTINNERBEARING 19 9170 0738 10 ASSEMBLY PRESS TOOL C SHAFT SUPPORT 20 9170 0733 30 STANDARD ALLEN KE...

Страница 3: ...ntling procedure all electrical components should then be checked for electrical safety The hammer should ONLY be checked for hammer performance if the unit passes the electrical safety test 1 Remove...

Страница 4: ...e the piston seals 4 1 Remove the four cap screws 6 from the handle 1 and remove the handle 2 Remove the six capscrews 7 from the gear case 4 and remove the cover 3 Remove the four capscrews 8 from th...

Страница 5: ...ayshaft gear 1 remove the thrust bearing assembly 3 and thrust washer 14 2 Press out the needle roller bearings 2 from the layshaft gear see service tool list 3 Secure crankshaft 10 to prevent rotatio...

Страница 6: ...apscrew 4 remove the bearing retainer 7 and thrust washer 3 slide off the connecting rod 2 press out the big end needle roller bearing 8 from the connecting rod remove the big end journal inner bearin...

Страница 7: ...ws of a vice precautions should be taken not to damage the core of the armature with the service tool remove the pinion 2 and spacer 11 see service tool list The service tool is held in position with...

Страница 8: ...hould be cleaned in a suitable cleaning fluid Electrical parts should be cleaned by the use of compressed air PRECAUTIONS MUST BE TAKEN FOR PERSONAL SAFETY THE USE OF EYE PROTECTION AND GLOVES IS RECO...

Страница 9: ...mps 9 amps ELECTRICAL TESTING ELECTRICAL PERFORMANCE TEST READINGS Electrical test Before assembly all electrical parts MUST be checked for safety and that they conform to specification Supplementary...

Страница 10: ...e tool 2 Press bearing 4 into bearing holder 3 and refit circlip 5 fit brush springs 11 to brush holder 12 3 Fit spacer washer 8 fan 6 flat washer 9 and lock nut 10 and tighten to recommended torque 1...

Страница 11: ...kshaft press the bearing inner ring 9 onto the crankshaft 1 fit the connecting rod as sembly to the crankshaft refit the thrust washer 3 bearing retainer 10 and cap screw 4 and tighten to the specific...

Страница 12: ...uching the gear and the centre of the dish making contact with the lock nut and tighten the lock nut to 70 Nm 6 Press needle roller bearings 2 into the layshaft gear 1 when pressing in the bearings th...

Страница 13: ...assembly to the top housing whilst locating the actuator 2 over the switch and secure with four capscrews 5 Fit the springs 1 onto the switch actuator 2 and check switch operation 1 Fit the top cover...

Страница 14: ...l 3 Note Smear Loctite 574 joint compound between the barrel and anvil housing before fitting together DO NOT USE SILICONE SEALANT 1 Insert the plunger and latch spring 5 2 Fit the latch 4 and press d...

Страница 15: ...the barrel latch the same side as the mains lead Note Smear Loctite 574 joint compound between the barrel and nosepiece before fitting DO NOT USE A SILICONE SEALANT 2 Place the washer cup 3 and washer...

Страница 16: ...initially and increase rapidly to 4000 volts between the main casting and one of the pins of the plug on the power supply cord Apply test to both live and neutral pins 2 The full voltage of 4000 volts...

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