Disassemble And Assemble Abrasive Trap - Marco BLASTMASTER 121P Operator's Manual

W-562
Always depressurize
the entire system,
disconnect all power
sources and lockout/
tagout all components
before any maintenance
or troubleshooting is
attempted. Failure to
comply with the above
warning could cause
electrical shock and
inadvertent activation of
equipment resulting in
death or serious injury.
W-563
Moving parts can
present an area where
crushing, pinching,
entanglement or
amputation may occur.
Do not place body parts
or foreign objects in any
area where there are
moving parts. Failure to
comply with the above
warning could result in
death or serious injury.
W-529
Never use compressed
air to separate or
remove internal
components during
maintenance.
Components could be
ejected at high speeds.
Failure to comply with
the above warning
could result in death or
serious injury.
17
Blastmaster 121P Remote Control System
®
MAINTENANCE

Disassemble and Assemble Abrasive Trap

Maintenance of the Abrasive Trap is limited to the daily cleaning and the immediate
replacement of damaged or worn parts.
Disassemble:
1) Remove Thumbscrew (1) by turning counter-clockwise.
2) Swing Cap Lock Bar (15) clear of Cap (3) and remove Shoulder Screws (2,16), Cap
Lock Bar, and Cap.
3) Remove O-ring (14) from Cap (3).
4) Remove Screen Gasket (4) from Cap (3). Inspect parts for damage and replace as
necessary.
5) Remove Abrasive Trap Screen (13) from upper chamber of Body (5). Clean or replace
as necessary.
6) Remove Thumbscrew (9) by turning counter-clockwise.
7) Swing Cap Lock Bar (7) clear of Cap (11) and remove Shoulder Screws (8,10), Cap
Lock Bar, and Cap.
8) Remove O-ring (6) from Cap (11).
9) Inspect 1" NPT Close Nipple (12). Replace as necessary.
Assemble:
1) Install 1" NPT Close Nipple (12) on air inlet side of Body (5).
2) Install Screen Gasket (4) in Cap (3). Install O-ring (14) on Cap.
3) Install Cap Lock Bar (15) using Shoulder Screw (2). Install Shoulder Screw (16) in
opposite hole.
4) Place Abrasive Trap Screen (13) with large opening of screen down. Ensure it sits in
recess of upper chamber of Body (5).
5) Install Cap (3) on Body (5), and move Cap Lock Bar (15) to rest against Shoulder
Screw (16).
6) Install Thumbscrew (1) and tighten.
7) Install Cap Lock Bar (7) using Shoulder Screw (10). Install Shoulder Screw (8) in
opposite hole.
8) Install O-ring (6) on Cap (11), and install Cap (11) on Body (5).
9) Move Cap Lock Bar (7) to rest against Shoulder Screw (8) and install Thumbscrew (9)
and tighten.