Elmo Rietschle G-BH10 - Manual (Page 20)

Servicing
610.44431.40.000 20 / 30 © Gardner Denver Deutschland GmbH
WARNING!
Before beginning to work on the G-
BH100 or the system carry out the fol-
lowing steps for both the G-BH100 and
the entire system
 switch off electricity,
 lock against restart,
 ensure absence of electricity,
 ground and short-circuit installation,
 cover or bar adjacent live parts,
 depressurise both pipes and pump.
WARNING!
Disassembly of
 the pump lid
 the pipe / hose connections
 the guard in front of the motor
only after the impeller and the rotor
have come to a complete standstill!
Consider run-out!
Disassembly of the bearing end hous-
ing is prohibited!
CAUTION!
Burning and scalding hazard due to hot
surfaces of the G-BH100!
Let the unit cool after shut-down!
WARNING!
Do not reach into the G-BH100 through
open suction or delivery branches!
Do not insert any objects into the G-
BH100 through the openings!
CAUTION!
After loosening clampings and fasten-
ing elements some parts and compo-
nents are only held in place by their
centrings or seatings or are no longer
held in place at all so that they might
fall down.
WARNING!
Before recommissioning
 completely re-assemble the G-
BH100
 check if all fasteners have been re-
assembled and tightened
 check pipes / hoses and vessels for
sufficient strength
 check pipe / hose connections for
tightness
WARNING!
Work on electrical installations may be
carried out by trained and authorised
electricians only!
7.1 Maintenance
7.1.1 Cleaning
Exterior:
 In case of lint or dust on the pump:
Clean the entire surface of the G-BH100 wip-
ing it with a wet cloth.
Interior:
 See also Fig. 9, page 21
 Disassemble pump lid (# 3).
In order to do so loosen the four bolts (# 1)
and carefully pull off the lid in axial direction
(see arrow) so that the pin is not bent.
i
IMPORTANT!
Don not detach the impeller nut
(# 4)! Do not disassemble the impel-
ler (# 4)!
Otherwise, inside the motor the rotor
would be displaced by a spring re-
sulting in the G-BH100 having to be
completely disassembled and re-
assembled!
 Remove lint using e.g. a pair of tweezers.
i
IMPORTANT!
Do not use compressed air in order
to clean the pump interior since this
might result in dirt entering the motor
interior.
 Re-assemble pump lid (# 3).
In order to do so carefully set the lid to the
pump so that the pin is inserted in the hole
and thus the lid is aligned. Carefully place the
lid on the pump in axial direction (see arrow)
so that the pin is not bent.
 Screw in the bolts (# 1)
securing them using Loctite 243.
Fastening torque of the bolts:
T
f
= 2 Nm  0.2
7 Servicing