Nova-Tech Mec-O-Matic VSP Series - Manual (Page 6)

Page 6 of 8
MAINTENANCE
NOTE
: NO USER SERVICEABLE COMPONENTS INSIDE ENCLOSURE. SHOULD THE POWER SUPPLY
CORD BECOME DAMAGED, IT MUST BE REPLACED BY PULSAFEEDER or ITS REPRESENTATIVES or A
SIMILARLY QUALIFIED PERSON IN ORDER TO AVOID A HAZARD.
: Do not attempt to feed chemicals without consulting your chemical feeder dealer or
chemical supplier.
Filling the chemical tank
- To avoid running out of chemical, follow a regular schedule of monitoring chemical
supply. Also inspect and clean the strainer by flushing with a compatible liquid, as needed. : Inspect
peristaltic tubing frequently and replace when deterioration becomes apparent. Peristaltic tubing will
eventually wear and break if neglected. This occurrence will cause chemical spillage and potential for
personal injury or damage to equipment. If a potential hazardous or corrosive chemical is handled, take
precautions to prevent personal injury and damage in the event of tubing failure. Refer to chemical
manufacturer’s recommendations with regard to safety and handling precautions. Always wear protective
clothing and safety glasses when working near chemical feed systems.
: Do not expose pump head tubing to pressure over 25-PSIG (1.76-kPa).
Tubing inspection
: inspect all tubing regularly and replace it if deteriorating. Use the following instructions to
replace the pump head tubing.
Replacing pump head tubing:
: Wear protective gloves, goggles, and other adequate protection for the chemical hazard. Before
replacing the pump head, remove chemical from tubing as follows: Remove strainer from chemical tank, then
run feeder until all chemical is removed from the tubing.
1. Remove the hose clamps from the tubing at the pump head (twist clamp to disengage teeth).
2. Pull the suction and discharge tubing from the pump head tubing.
3. Rotate the pump head counter-clockwise (see arrows in Figure 5) to disengage from the collars on the
feeder cover. DO NOT REMOVE or LOOSEN COLLAR SCREWS.
4. Grasp the tabs on the back cover of the pump
head and pull straight out to remove, see Figure
7.
: Do not lose the bearing from
the center hole in the back cover. It’s not
necessary to remove the spider and bearing
from the housing.
5. Remove the old tubing and retaining tube
collars from the pump head (see Figure 6).
6. Position the spider about as shown in Figure 6.
Then put the retaining collar on the pump head
tubing as shown, and position the collar in the
pump head with the open end facing outward.
7. While rotating the spider counter-clockwise (←), push the tubing into the housing to center over the rollers
as shown in Figure 6.