STS M2-H Operator'S Manual Download

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GR-82E2

PUMP AND SEAL DISASSEMBLY
AND REASSEMBLY

Review all SAFETY information in Section A.

Follow the instructions on all tags, label and
decals attached to the pump.

This pump requires little service due to its rugged,
minimum-maintenance design. However, if it
becomes necessary to inspect or replace the wearing
parts, follow these instructions, which are keyed to
the sectional view (see Figure 1) and the
accompanying parts list.

This manual will alert personnel to known procedures
which require special attention, to those, which could
damage equipment, and to those, which could be
dangerous to personnel. However, this manual
cannot possibly anticipate and provide detailed
precautions for every situation that might occur
during maintenance of the unit. Therefore, it is the
responsibility of the owner/maintenance personnel
to ensure that

only

safe, established maintenance

procedures are used, and that any procedures
not addressed in this manual are performed

only

after establishing that neither personal safety nor
pump integrity are compromised by such practices.

Before attempting to service the pump, lock out or
disconnect the power source to ensure that it will
remain inoperative. Close all valves in the suction
and discharge lines.

For power source disassembly and repair, consult
the literature supplied with the power source, or
contact your local power source representative.

Before attempting to open or service the
pump:
1. Familiarize yourself with this manual.
2. Lock out or disconnect the power
source 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 any suction and discharge
valves.
6. Vent the pump slowly and cautiously.
7. Drain the pump.

Use lifting and moving equipment in
good repair and with adequate capacity
to prevent injuries to personnel or damage
to equipment. Suction and discharge hoses and
piping must be removed from the pump before
lifting.

For engine disassembly and repair, consult the literature
supplied with the engine, or contact your local Honda
representative.

Suction Check Valve Disassembly

Before attempting to service the pump, remove the
pump casing drain plug (12) and drain the pump.
Clean and reinstall the drain plug.

For access to the check valve, remove the suction
hose. Remove the nuts (2) and separate the
suction flange (18) and check valve (16) from the
pump casing (10).

Inspect the check valve parts for wear or damage.
If replacement is required, remove the hardware
(14, 15, 17) and separate the check valve gasket and
weights.

Pump Casing and Wear Plate Removal

To service the wear plate (9), remove the nuts & lock
washers (2) securing the pump casing to the seal
plate (3) and engine. Separate the pump casing and
remove the gasket set (5).
Inspect the wear plate for scoring or excessive wear.
To remove the wear plate, disengage the
hardware (2, 13). Pull the wear plate out of the pump
casing.