Star Trac Leg Curl Owner's Manual page 11

7. Install the Weight Stack Shrouds
NOTE: It is necessary to flex the lower
shrouds (46, 47) slightly to engage the mat-
ing grooves in the weight stack frame (1).
Slide the lower front shroud (47) into the mat-
ing grooves in the weight stack frame (1). Slide
the lower rear shroud (46) into the mating
grooves in the weight stack frame.
Install one tapped hole nut (61) onto each of
the six upper shroud mounting tabs on the
weight stack frame (1).
Hold one upper shroud (48) in position against
the weight stack frame (1), and secure the
shroud to the frame using three screws (74)
and washers (87).
Repeat for the remaining upper shroud (40).
8. Final Assembly and Testing
Check all attaching parts to ensure they are
tightened securely.
Verify operation of the seat post:
While holding the seat post, press the
ratchet handle to retract the locking pin,
and move the back cushion forward.
Release the ratchet handle, and verify the
locking pin engages the first drilled hole
at the first seat position.
Repeat to verify the locking pin engages
the drilled hole at all seat positions.
Return the seat post to the "stowed" posi-
tion.
Verify the seat post slides smoothly, with-
out evidence of sticking or binding.
Verify operation of the lap cushion:
Pull out on the pull pin in the lap cushion
support to retract the locking pin, and
hold in the retracted position. Rotate the
lap cushion support upward, then release
the locking pin. Verify the locking pin
engages a drilled hole in the leg cushion
ratchet ratchet.
Repeat to verify the locking pin engages the drilled hole at all lap cushion positions.
Return the lap cushion to the first position.
Mount the unit. Engage the selector pin at a comfortable weight. Adjust the back cushion and lap cushion as desired.
If necessary, release the actuator arm lock and place the leverage arm in the "leg curl" position, then re-engage the lock.
Operate the leverage arm and verify the following:
Verify operation of the leverage arm is smooth, without evidence of sticking or binding.
Verify there is no evidence of "free play" when actuating the leverage arm from the "stowed" position.
Verify there is no evidence of excessive noise during operation.
26
74
87
87
48
61
74 87
1
61
61
46
87
74
61
87 74
STAR TRAC INSTINCT LEG MACHINES O
WNER
Remove the retaining screws (62) and belt retainers (43) from the belt clamps on the weight stack top plate (49) and lever-
age arm (11).
Insert one end of the weight belt (20) through the slot in the top plate belt clamp until approximately one inch of the free
end of the belt protrudes from the slot in the opposite side of the clamp.
While holding the free end of the belt, press down on the opposite side of the belt so it lays flat against the inside of the
clamp.
Insert the belt retainer (43) into the belt clamp. BE SURE the tapped hole in the belt retainer is aligned with the mating
hole in the belt clamp.
CAUTION: BE SURE to keep the weight belt straight when installing the retaining screw (62) in the belt
87 retainer (43). Misalignment of the weight belt may bias the top plate, which can cause excessive contact of
74
the top plate shaft with the weights, resulting in excessive noise during use, and potential hazards to the
user or other bystanders.
48
Thread the retaining screw (62) through the belt clamp and into the belt retainer (43). Tighten the retaining screw to 400
inch-pounds.
Route the weight belt (20) over three pulleys and the leverage arm cam, as illustrated.
47 Insert the free end of the weight belt (20) through the slot in the leverage arm belt clamp, and pull through the opposite
slot just until force is applied against the top plate (49). This will eliminate any slack in the belt and ensure proper ten-
sioning.
While maintaining tension on the weight belt, press down on the free end of the belt so it lays flat against the inside of
the belt clamp.
Insert the belt retainer (43) into the belt clamp. BE SURE the tapped hole in the belt retainer is aligned with the mating
hole in the belt clamp.
Thread the retaining screw (62) through the belt clamp and into the belt retainer (43). Tighten the retaining screw to 400
inch-pounds.
Check for proper tensioning of the weight belt by applying lateral pressure to the belt at a point midway between two pul-
leys. Deflection of the weight belt should be less than 25 mm. Loosen the retaining screw (62) and adjust belt tension as
needed.
5. Install the Handgrips and Cushion
Brackets
Hold the handgrips (5) in position on the under-
side of the main frame (2) and align the five
drilled holes in the handgrips with the mating
holes in the main frame. Secure the handgrips to
the main frame using two screws (71), four wash-
ers (78), two lock nuts (75), one screw (66), one
spring washer (79) and one washer (78). Tighten
the attaching parts securely.
Hold the seat cushion support (8) in place on
the main frame (2). Secure the seat cushion
support to the main frame using four screws
(63), washers (78) and lock nuts (75). Tighten
the nuts securely.
Hold the back cushion support (7) in place on
the seat post (6) (factory installed). Secure the
back cushion support to the seat post using
two screws (68), four washers (78) and two lock
nuts (75). Tighten the nuts securely.
' M STAR TRAC INSTINCT LEG MACHINES O
S ANUAL
78
68
78
75
2
' M
WNER S ANUAL
7
75
78
75
63
6
8
78
75
75
78
5
78
71
78
78
78
66 79 71
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