Page 6 ITW Dynatec
Rev.10.15 Appendix Pumps
Maintenance
Tightening Torque for High Tensile ISO 12.9 Lubricated Bolts (572°F max. / 300°C max.)
Bolt Size & Qty. Bolt Location Torque Nm/ Ft.lbs.
M5 (4) Retainer cap 7.1/ 5.2
M10, 12 (4) Mounting bolts 41/ 30 at ambient temperature
M10, 12 (4) Mounting bolts
24/ 18 at production
temperature
Notes: If mounting bolts are torqued at production temperature, they should be re-torqued
(to 41 Nm/30 Ft lb.) when machine is at ambient temperature.
1 Nm = 8.85 in/lbs. Torques given above are for Metric and UNF threads. Multiply by 0.8
for UNC and BSF threads. Multiply by 0.8 for BSVV threads (multiply by 0.67 for stainless
steel).
ITW Dynatec frequently provides special features at their customer’s request. Please
consult with ITW Dynatec, quoting job and pump references, if questions arise.
Maintenance Notes
• Seal failure will eventually occur. Develop a plan to deal with this situation. Take
appropriate safety measures if liquid is hazardous.
• BEFORE starting any maintenance procedure, do the following:
Shut off all power switches and circuit breakers.
Remove any electrical service fuses.
Lock electrical service panel supplying power to system.
Shut, wire or chain, and lock all valves in pump inlet/outlet hose.
If applicable, shut off any pneumatic or other fluid supply lines to the pump.
• Visually check equipment frequently for signs of damage or leakage from shaft seals,
gaskets or O-rings.
• Be sure all connections are tight.
• If seal leakage is more than about 10 drops per hour per seal, shut down equipment
and repair or replace necessary parts.
• Shaft seals have a limited, finite life which is affected by operating conditions and
environment. Expect them to wear and eventually fail. When leakage becomes
unacceptable, replace the seal unit with the correct replacement unit, one compatible
with pump’s operating conditions. Dirty liquids will reduce seal life.
• Cleaning fluids and methods are subject to strict Health and Safety regulations. Avoid
contact with skin, do not inhale fumes and protect eyes.
• Packing seals should be replaced when all packing follower travel is exhausted or
when packing is damaged and leakage cannot be controlled.
• Where pump out-of-service time is of vital concern and down-time must be minimized,
kits of spare parts and seals should be acquired before needed and retained on-site.
• Only trained, specialized personnel, using the appropriate Original Installation, Care
and Maintenance Instructions, can perform maintenance, which includes, but is not
limited to, Inspection, Repair, Assembly and Disassembly.
• Contact ITW Dynatec for information on having personnel trained.
To Next Page
Loading...
