4
1. Remove four Allen Bolts
(1) using Allen Key (size
4). Remove Cover Plate (2),
Rubber Washer (3), Vanes
(4), Rotor (6) & Key (5) from
Housing (12). Replace Vanes
(4) if damaged or worn.
2. Use a wrench and remove
the Hex Plug (9). Remove the
Valve Spring (10) & Bypass
Valve (11). Clean or replace if
required.
MAINTENANCE & REPAIR (Refer to EXPLODED VIEW - Page 6)
General Precautions
•
Switch off the pump motor and disconnect Battery Cable (26) from the power supply before carrying out any maintenance
•
Before dismantling the pump, remove it from drum & disconnect it from all the accessories (hose / tube / nozzle holder etc.)
•
If the pump has been operated with Fuel Control Nozzle (28) closed, press trigger on the nozzle to release any built up pressure
inside the hose or pump
•
Be careful when fitting O-rings and seals. Replace them with new ones when they are removed from the pump. Always lubricate
them with oil or grease before fitting. They must never be threaded over sharp edges when being fitted
Recommended Tools
Combination Wrench
Size 8 mm, Size 24 mm
Slotted Screwdriver
•
CORRECT ORIENTATION OF VANES as shown in the
images here.
•
SMOOTH MOVEMENT OF BYPASS VALVE against the
force of Valve Spring. Do not overtighten Hex Plug (9).
•
Ensure all mating surfaces are clean before
reassembly. Apply minor grease on all O-Rings & Seals
before reassembly.
•
Always Loosen /
Tighten the bolts in
an even & diagonal
pattern. First
tighten all the bolts
by hand & finally
tighten each bolt by
1 FULL turn using a
tool of correct size.
VANE KIT REPLACEMENT (Refer to EXPLODED VIEW - Page 6)
3. Replace Vane Kit (
EDP/KIT/VK
) by repeating steps 1-2 in
reverse order ensuring:
1
2
3
4
Allen Key
Size 4
Rotor
