MULTIQUIP MAYCO Series Operation Manual page 39

ASSEMBLING AND DISASSEMBLING DRIVE CHAIN
CAUTION
You may be seriously injured if you attempt to install
the drive chain while the pump is running. Turn off
the engine and lock out gears and sprockets before
attempting installation.
Once installed, the drive chain must be guarded to
prevent personal injury or properly damage in the event
the chain separates during operation. NEVER run pump
with drive chain guard removed.
CAUTION
The components of the drive chain are hardened
parts. Striking these parts may cause metal chips to
break off from the chain or the tools used resulting in
personal injury.
During all stages of chain disassembly and assembly,
wear safety glasses to prevent metal parts or chips
from entering your eyes and have personnel in the
immediate area do likewise.
CHAIN-LINK PIN REMOVAL
1. If chain is of cotter pin- type construction, remove
cotters.
2. If chain is riveted type construction, grind pin heads off
so pin ends are flush with the linkplate.
3. Drive pins out of linkplate using a Diamond pin extractor
Model P/N 113 or 135. Some multiple strand chains or
large pitch models will require a hammer and punch or
a press to remove the pins.
INSTALLATION OF COVERSIDES
Diamond Chain coversides are manufactured three different
ways:
„ Slip Fit
„ Modified Press Fit
„ Full Press Fit
MAYCO C30HDGA CONCRETE PUMP • OPERATION MANUAL — REV. #1 (09/09/19) — PAGE 39
NOTICE
Modified and Full Press Fits require some patience and
tools to assemble and/or disassemble. Use vice grips,
plumbers pliers or a small hammer to drive coversides
onto pins
INSTALLATION OF SPRING LOCKS AND COTTER-
PINS
After coversides have been installed, install spring locks or
cotters (depending on chain design). Avoid using bent or
worn cotters or spring locks. After spring locks (or cotters)
are installed, lightly tap pin ends to position these parts
snug against the coverside for additional support.
TIPS TO REMEMBER
„ Chain will break if misused or abused
„ Serious injury or property damage can result if chain is
installed incorrectly.
„ Select, install, guard and maintain chain in accordance
with equipment manufacturer and "Diamond Chain
Company's recommendations.
„ Read chain assembly instructions before attempting to
install chain on pump sprocket wheel.
„ Knowing more about how the chain is constructed may
help in assembly and disassembly. Further information
may be obtained by calling or writing Diamond Chain
Company™.
MAINTENANCE