13.2
SG 51 Specifications
Working pressure, max.:
6 bar
Flow volume, max.:
1.4 l/min
Solution capacity, max.:
12 l
Operating temperature, max.:
40°C
Residual solution in tank:
<0.25 l
Recoil force:
<20 N
Dry weight:
4.5 kg
13.3
SG 71 Specifications
Working pressure, max.:
6 bar
Flow volume, max.:
1.4 l/min
Solution capacity, max.:
18 l
Operating temperature, max.:
40°C
Residual solution in tank:
<0.27 l
Recoil force:
<20 N
Dry weight:
4.8 kg
14 Troubleshooting
Before starting, spray the unit empty until the pressure has been completely relieved - when working
on the unit, liquid may splash out uncontrollably if the pressure is not released.
After the work, carry out a test run with clear water.
Fault
Cause
Remedy
Pressure gauge does not
show the container pressure
Pressure gauge defective
Replace pressure gauge
Pumping action produces no
pressure. Lever is remarkably
easy to operate
Pump tube damaged
Replace pump tube
Valve disc damaged
Replace valve discs
1)
Piston packing damaged
Replace piston packing
1)
Lever blocked or difficult to
move down
Piston packing not greased
Grease piston packing
Nozzle / swirl insert / filter blocked
Clean nozzle / swirl insert / filter
Tool only sprays when pump‐
ing
Pressure vessel fully filled with liq‐
uid
Pump the unit completely empty.
Repeat after 5 fillings at the lat‐
est
Nozzle does not spray – pres‐
sure in unit OK
Nozzle / swirl insert / filter blocked
Clean nozzle / swirl insert / filter
Liquid drips from the nozzle
Nozzle / swirl insert / filter blocked
Clean nozzle / swirl insert / filter
Jet only – no atomization
Swirl insert on the nozzle missing
Insert swirl insert into nozzle
Nozzle fouled
Cleaning the nozzle
1)
STIHL recommends STIHL servicing dealers
15 Maintenance and Repairs
Users of this machine may only carry out the
maintenance and service work described in this
user manual. All other repairs must be carried
out by a servicing dealer.
STIHL recommends that you have servicing and
repair work carried out exclusively by an author‐
ized STIHL servicing dealer. STIHL dealers are
regularly given the opportunity to attend training
courses and are supplied with the necessary
technical information.
When repairing the machine, only use replace‐
ment parts which have been approved by STIHL
for this power tool or are technically identical.
Only use high-quality replacement parts in order
to avoid the risk of accidents and damage to the
machine.
STIHL recommends the use of original STIHL
replacement parts.
Original STIHL parts can be identified by the
STIHL part number, the
{
logo and the
STIHL parts symbol
K
(the symbol may appear
alone on small parts).
16 Disposal
Contact the local authorities or your STIHL serv‐
icing dealer for information on disposal.
Improper disposal can be harmful to health and
pollute the environment.
000BA073 KN
► Take STIHL products including packaging to a
suitable collection point for recycling in accord‐
ance with local regulations.
14 Troubleshooting
English
0458-597-0121-C
13
