0 SERIES
OM-01194
MAINTENANCE & REPAIR
PAGE E - 6
PUMP AND SEAL DISASSEMBLY
AND REASSEMBLY
Review all SAFETY information in Section A.
Follow the instructions on all tags, label and de
cals attached to the pump.
This pump requires little service due to its rugged,
minimum‐maintenance design. However, if it be
comes necessary to inspect or replace the wearing
parts, follow these instructions which are keyed to
the sectional views (see Figures 1 and 2) and the
accompanying parts list.
Because pump installations are seldom identical,
this manual cannot possibly provide detailed in
structions and precautions for every aspect of
each specific application. Therefore, it is the re
sponsibility of the owner/installer of the pump to
ensure that applications not addressed in this
manual are performed
only
after establishing that
neither operator safety nor pump integrity are com
promised by the installation. Pumps and related
equipment
must
be installed and operated ac
cording to all national, local and industry stan
dards.
Most service functions, such as impeller, wear ring,
and seal replacement, may be performed by drain
ing the pump and removing the pump casing.
However, due to the confined mounting location of
the pump, it is recommended that the pump and
gearbox be removed from the vehicle for service.
The following instructions assume complete disas
sembly is required.
If the gearbox requires repair, proceed with
PUMP
AND SEAL DISASSEMBLY
, followed by
GEAR
BOX DISASSEMBLY
.
Before attempting to service the pump, switch off
the engine ignition and remove the key, or take oth
er safety precautions to ensure that it will remain
inoperative. Close all valves in the suction and dis
charge lines.
Before attempting to open or service the
pump:
1. Familiarize yourself with this man
ual.
2. Switch off the vehicle ignition and
remove the key, or take other pre
cautions to ensure that the pump
will remain inoperative.
3. Allow the pump to completely cool
if overheated.
4. Check the temperature before
opening any covers, plates, or
plugs.
5. Close the suction and discharge
valves.
6. Vent the pump slowly and cau
tiously.
7. Drain the pump.
After the vehicle is positioned for pump
maintenance, block the wheels and set
the emergency brake before attempting
to disconnect the drive shaft or remove
the pump. Be sure the pump is properly
reinstalled and secured before opera
tion.
Death or serious personal injury and
damage to the pump or components
can occur if proper lifting procedures
are not observed. Make certain that
hoists, chains, slings or cables are in
good working condition and of suffi
cient capacity and that they are posi
tioned so that loads will be balanced
and the pump or components will not be
damaged when lifting. Suction and dis
charge hoses and piping must be re