RedMax EBZ7500 User manual

B1500002
English 1 (6)
SB, Back Pack Blower impeller rework, EBZ7500,
EBZ7500RH, EBZ8500, EBZ8500RH, 2015-11
This SB replaces B1500001.
Affected models and serial numbers
All products in Table 1 manufactured before the specified serial number.
Model
PNC
Serial number
Model
PNC
Serial number
EBZ7500
966624301
20153700541
EBZ8500
966624501
20153700031
EBZ7500RH
966709901
20153700003
EBZ8500RH
966710001
20153700002
Table 1: Affected models and PNC. Serial number specifies the introduction of modified impeller in production.
Description
We have received reports of rattling fans on the backpack blowers. The main reason is that the four metal
sleeves that are cast into the impeller can come loose from the surrounding plastic. Modified metal sleeves
that prevent play are now cast into impeller 589 26 61-01 (in production 17 August 2015 as from serial
number in Table 1).
Tools required for reworking:
10mm socket
T-handled tap set M5 (5mm x 0,8)
Air to blow out shavings
T27 Torx bit
Torque wrench, up to 12Nm required.
Parts information
New part no. Part description Old part no.
589 26 61-01 (fans produced after 03 Aug -15) Fan 576 56 15-01
Action
Service of unused blowers is not required. If a problem with the fan/impeller occurs, perform
service/update through normal warranty process.
Warranty reporting
Component code: 806 - Fan / Impeller
Defect code: 92 - Part exchanged on request by Husqvarna
Text: B1500002
Time units (6 minutes): 7 units
Affected market(s): All
Warranty type: If unit has been sold to a customer; use 01 –warranty
If unit has not been sold to customer; use 04 –requested by factory

B1500002
English 2 (6)
Detailed description
Process
Content
1
Take the unit out from the carton (if rework).
2
Unplug spark plug cable.
3
Disconnect the fuel lines from the carburetor.
Don't use any sharp objects!
4
Remove two nuts for the lower dampers from bottom side.

B1500002
English 3 (6)
Process
Content
5
Remove two screws for the upper damper from back side.
6
Remove the unit from the frame.
7
Remove twelve screws for the volute cover.
8
Remove four screws for the fan.

B1500002
English 4 (6)
Process
Content
9
Exchange the equipped fan to the new fan.
576 56 15-01 →589 26 61-01
10
Secure four screws for the fan.
Tightening torque →12Nm
11
If needed, to chase two female threads on the upper damper and blow out.
12
Secure twelve screws for the volute cover.
Tightening torque for ten screws →3.5Nm
Tightening torque for two screws around elbow →1.0Nm
1
3
4
2

B1500002
English 5 (6)
Process
Content
13
Put the unit onto the frame.
14
Secure two screws for the upper damper from back side.
Tightening torque →3Nm
15
Secure two nuts for the lower damper from bottom side.
Tightening torque →5Nm
16
Connect spark plug cable to spark plug.
17
Connect the fuel lines to the carburetor.

B1500002
English 6 (6)
Process
Content
18
Put a green marker on the base of the product (if rework).
19
Put the reworked unit into the carton (if rework).
20
Put the green dot onto the carton decal by decal or marker to clarify rework finished
(if rework).
Example:
21
End.