Operating, Dismantling & assembly instructions, Motor assembly – Universal Air Tools UT1054 User Manual
Page 2: Safety rules for a laminate trimmer, Dismantling trimmer housing, Assembly complete tool

Page No 2
Operating
Select a suitable burr/cutter that has a free running speed higher
than the maximum running speed marked on the tool. Make
sure that the diameter of the shank exactly matches the diameter
of the collet mounted in the tool. The collet size available for this
tool is 1/4" dia (6.35 mm).
Never try to close a 1/4" diameter collet to secure a 6 mm
shank. Always match correctly the shank size to the collet size.
If uncertain, have parts measured by a competent person. Push
the shank as far as possible into the collet and tighten the collet
nut using the spanners provided on the collet nut and output
spindle. The shank of the mounted point may be pulled forward
from the maximum insertion length but always ensure a
minimum gripping length of 10 mm.
The cutting edge of the burr/cutter must be between the Shoe
Plate (44) and the Adjusting Bar (39). Set depth of cut by
screwing Adjusting Screw (35) to set roller height.
The cutter must be unchipped and in good condition especially
the shank. The fitting of the burr/cutter should be done by a
trained operator. When first starting the tool with a new cutter
the tool should not be near other persons and be held in a
protected area, i.e. under a bench and run for a few seconds.
This will protect personnel from possible effects of damage to the
cutter before it was fitted to the tool.
Always use eye protection and wear protective gloves if there are
sharp edges in the work area. The tool and the process can
create a noise level such that the use of ear protectors is advised.
If the process creates a dust then use a suitable breathing mask.
Check that the material being work will not cause harmful dust or
fumes. If this is so then special breathing masks may be
required. If the tool vibrates when first fitting burr/cutter or
during operation, remove from service immediately and correct
fault before continuing to use.
Do not apply excessive pressure as this will reduce the cutting
efficiency and apply light loads to allow the burr/cutter to cut.
Handle the tool with care. If the tool is dropped, carefully check
for damage, i.e. chipping and start for the first time as for fitting
a new cutter, i.e. under a bench.
Never exceed the maximum air pressure. If there is possibility
always use this tool with a pressure reducing valve fitted in the
supply line. Your supplier will advise of suitable equipment. This
tool is fitted with a speed regulator and the speed may be
reduced by rotating Air Regulator (4) with a suitable screwdriver.
When making speed checks always rotate the air regulator to the
position to give the highest maximum speed.
Dismantling & Assembly Instructions
Disconnect tool from air supply.
Using the spanners provided remove Collet (26) and Collet Nut
(27). Loosen Setscrew (31) and Capscrew (29). Slide out Motor
Housing (12) from Trimmer Housing (28).
Motor Assembly
Hold motor housing in soft jawed vice on flats provided. Using a
peg spanner remove Locking Nut (25) , Silencer (24) and motor
assembly complete with Spindle (23). Hold cylinder (19) tightly in
the hand and tap the rear end small diameter of the Rotor (16)
out of the Rear End Plate (14) and Bearing (13). Remove Cylinder
(19 and the 3 off Rotor Blades (15). Grip Rotor (16) tightly in soft
jawed vice and using a spanner on flats provided unscrew
Spindle (23). Tap or press out Rotor (16) , Bearing (22) and
Spacer (21) from Front End Plate (20). Using pliers remove Pins
(18) from Cylinder (19).
Using a wide blade screwdriver remove Throttle Valve Screw (1)
complete with O- Ring. Pull out Regulator (4) , O-ring (3) , Throttle
Valve Spring (5) , O-ring (6) and Throttle valve (7). Press out
Throttle Valve Bushing (8) if necessary. Press out Pin (10) and
remove Lever (9). Using a spanner remove Air Inlet (11).
Clean and examine parts for wear or damage and replace only
Safety Rules For A Laminate Trimmer
1) Read all the instructions before using this tool. All operators
must be fully trained in its use and aware of these safety rules.
2) Always select suitable abrasive to use with this tool - see
Operating Instructions.
3) Always shut off air supply to the tool and depress the lever to
exhaust air from the feed hose before fitting, adjusting or
removing the burr/cutter.
4) Always adopt a firm footing and/or position before using the
tool.
5) Use only correct spare parts.
6) Check hose and fittings regularly for wear. Do not carry the
tool by its hose.
7) Never tie down the lever.
8) Never exceed the maximum air pressure and check the free
running speed frequently. Have air regulator fully open when
making speed checks.
9) Use safety equipment as recommended.
10) Take care against entanglement of moving parts of the tool
with clothing, ties, hair, cleaning rags, etc.
11) Use only compressed air at the recommended pressure.
12) Do not attempt to fit any other attachment than those
recommended - see "Foreseen Use of Tool".
13) If the tool appears to malfunction, remove from use
immediately and arrange for service/repair.
with genuine replacement parts. Ensure that the faces of End
Plates (14) and (20) are flat and free from burrs. Lap on a flat fine
grade or abrasive paper if necessary. Lightly lubricate all parts
with Shell Tellus R10 or equivalent. Lubricate bearings with a
molybdenum based grease. Ensure that Pins (18) locate in End
Plates (14) and (20).
Dismantling Trimmer Housing
Unscrew Nut (40) and remove Washers (11) and (42) and Shoe
(43). Using a Phillips screwdriver remove Screws (33) and
remove Shoe Plate (44). Screw out Adjust Screw (35) and
remove Adjust Bar (39). Press out Pins (34) and remove Adjust
Screw (35). Holding adjust Bar (39) in a vice, remove Screw (36)
, Washer (37) and Ball Bearing (38).
Reassemble in reverse order examining all parts for signs of wear
or damage replacing any parts necessary. Lubricate all parts as
necessary.
Assembly Complete Tool
Insert motor assembly into trimmer housing ensuring that the
motor is inserted fully into the housing. Line up Lever (9) with
Adjust Screw (35). Tighten Set Screw (31) and Cap Screw (29).