MUTURQ GC160 Pressure Washer Pump Instruction Manual
- June 14, 2024
- MUTURQ
Table of Contents
PRESSURE WASHER PUMP
INSTRUCTION MANUAL
Assembly drawing for HORIZONTAL Pump
TECHNICAL SPECIFICATION
| Type | Axial |
|---|---|
| Manifold | Aluminum Alloy |
| Crankcase | Aluminum Alloy |
| Bearing | Double Bearing |
| Lubrication | 85W90 Pre-Sealed |
| Self suction | NO |
| “Inlet Connector | 3/4″ NH Garden Hose |
GENERAL SAFETY INFORMATION
The pump is designed to pump non-flammable or non-explosive fluids. These
pumps are intended to pump clean filtered water only.
Do not operate in or around an explosive environment.
Always wear safety glasses or goggles and appropriate clothing.
Do not allow children to operate the pump.
Never point the high-pressure discharge at a person, any part of the body or
animals.
Do not operate gasoline engines in a confined area and always have adequate
ventilation.
Do not exceed the pump specifications in speed or pressure.
Do not alter the pump from the manufacturers design.
INSTALLATION DIRECT DRIVE PUMPS
- Install the shaft key into the keyway and apply a light coating of anti-seize on the engine shaft.
- Align the two key ways and push the pump completely onto the engine.
- Install all bolts and tighten evenly.
- Remove protection cap of outlet and unloader valve.
- Install the appropriate water inlet fitting (3/4”-11.5 NH).
- Connect the water supply hose to the outlet, and then attach the high-pressure discharge hose and spray gun.
- Turn on the water supply.
- Open the spray gun to purge the system of any air.
- Start the engine.
- Adjust the engine speed at rated 3,400 RPM will get best performance.
- Open gun trigger check if pump is working well and installation and connection are all qood.
NOTE:
Please read and save these instructions. Read carefully before attempting
to assemble, install, operate or maintain the product described. Protect
yourself and others by observing all safety information. Failure to comply
with instructions could result in personal injury and/or property damage!
Retain instructions for future reference.
TROUBLESHOOTING GUIDE
| Symptom | Possible Cause(s) | Corrective Action |
|---|---|---|
| Low Pressure | Worn nozzle | Replace nozzle, of proper size |
| Belt slippage | Tighten or replace; use correct belt | |
| Air leak in inlet plumbing | Disassemble, reseal and reassemble | |
| Relief valve studk, partially plugged or improperly adjusted valve seat worn |
Clean, adjust relief valve; check for worn and dirty valve seats. Kit
available
Inlet suction strainer clogged or improperly sized| Clean. Use adequate size.
Check more frequently
Worn packing. Abrasives in pumped fluid or severe cavitation. Inadequate
water| Install proper filter. Suction at inlet manifold must be limited to
lifting less than 20 feet of water or -8.5 PSI vacuum
Fouled or dirty inlet or discharge valves| Clean inlet and discharge valve
assemblies
Worn inlet, discharge valve block or dirty| Replace worn valves, valve seats
and/or discharge hose
Leaky discharge hose
Oil leak between crankcase and pumping section| Worn rod oil seals| Replace
crankcase piston rod seals
Frequent or premature failure of the packing| Cracked, damaged or worn
plunger| Replace plungers
Overpressure to inlet manifold| Reduce inlet pressure
Material in the fluid being pumped| Install proper filtration on pump inlet
plumbing
Excessive pressure and/or temperature of fluid being pumped| Check pressures
and fluid inlet temperature; be sure they are within specified range
Running pump dry| Do not run pump without water
Pump runs but produces no flow| Pump is not primed| Flood suction then restart
pump
Pump fails to prime| Air is trapped inside pump| Disconnect discharge hose
from pump. Flood suction hose, restart pump and run pump until all air has
been evacuated
Pump looses prime, chattering noise, pressure fluctuates| Air leak in suction
hose or inlet| Remove suction line and inspect it \ for a loose liner or
debris lodged in hose. Avoid all unnecessary bends. Do not kink hose
Clogged suction strainer| Clean strainer
Low pressure at nozzle| Unloader valve is by-passing| Make sure unloader is
adjusted property and by-pass seat is not leaking
Incorrect or worn nozzle| Make sure nozzle is matched to the flow and pressure
of the pump. If the nozzle is worn, replace
Worn packing or valves| Replace packing or valves
Pressure gauge fluctuates| Valves worn or blocked by foreign bodies| Clean or
replace valves
Packing worn| Replace packing
Pump runs extremely rough, pressure very low| Inlet restrictions and/or air
leaks.| Clean out foreign material
Stuck inlet or discharge valve| Replace worn valves
Slight leak, oil leaking in the area of rankshaft| Worn crankshaft seal or
improperly installed oil seal o-ring| Remove oil seal retainer and replace
damaged 0-ring and/or seals
Bad bearing| Replace bearing
Water leakage from under manifold| Worn packing or cracked plunger| Install
new packing or plunger
Excessive play in the end of the crankshaft pulley| Worn main bearing from
excessive tension on drive belt| Replace crankcase bearing and/or tension
drive belt
Water in crankcase| Humid air condensing into water inside the crankcase|
Change oil intervals
Worn packing and/or cracked plunger| Replace packing. Replace plunger
Loud knocking noise in pump| Cavitation or sucking air| Check water supply is
turned on
Pulley loose on crankshaft| Check key and tighten set screw
Broken or worn bearing| Replace bearing