PFT G 5 SUPER - Page 37

PFT G 5 SUPER Operating Manual Issued 11.2008
Knauf PFT GmbH & Co.KG
37
Mortar flow stops! - Poor mixture in mixing tube? Add water.
(air bubbles) - Mixing shaft faulty? When this does not help,
clean or replace mixing
shaft.
- Motor hauling bracket faulty?
- Input hopper on mixing tube wet? Dry mixing tube inlet and
start again.
- Material is lumpy and clogging mixing tube
?
Replace hauling bracket.
Mortar flow inconsistent! - Too little water? If too little water, increase
water quantity by 10 % for
approx. half a
“Thick/thin“ - Water safety switch not adjusted or faulty? minute. Return slowly to
normal setting.
- Mixing shaft faulty, not an original PFT
mixing shaft?
Readjust or replace pump
components with original
parts.
- Pressure reducing valve not adjusted or
- Rotor worn out, faulty?
- Stator worn out or clamp faulty?
- Clamp faulty (oval)?
- Inner side of mortar hose faulty? Replace mortar hose.
- Rotor too deep in pressure flange? Check mixing shaft and
hauling bracket.
- not original PFT parts?
Water rises in mixing tube - Back pressure in mortar hose higher than
- Rotor or stator worn out? Tighten or replace stator; if
necessary also replace
rotor.
- Hose blocked by too thick mortar? (high
pressure caused by too little water)?
Clear hose block.
Fault lamp lights up! - Overloading?
- Motor safety switch (16 A) activated (pump
motor)?
Turn on safety switch, clean
mixing tube and increase
water supply when
restarting machine.
- Pump blocked with dry material?
- Insufficient water?
- Motor safety switch (2,5 A) activated (star
wheel motor)?
Clean hopper and star
wheel.
- Clogged material in hopper?
- Motor safety switch activated?
Red lamp lights up! - Power cable too thin 5x4mm²?
“direction of rotation“ - Power connection too long 50m cable?
- 1 phase missing?
- Voltage too low?
- Wrong direction of rotation? Change direction of rotation
at reversing switch.