SR4 5
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P. CARRIAGE
The carriage of the SR45 can be adjusted to preset a range of tilt.
IMPORTANT NOTE– This adjustment must be done by an authorized supplier only
1. Location Adjustment
a. Loosen and remove bolts A & B.
b. Set the carriage at desired range setting using the proper holes.
c. Replace and tighten all bolts.
IMPORTANT NOTE– The adjustment on each side of the chair should be exactly equal.
NOTE– Use a torque setting of 120 in.-lbs. When setting-up carriage.
NOTE– It is highly recommended to replace both rollers within each carriage assembly at the same time.
Do not use lubricants anywhere on the assembly.
2. Top Roller Replacement
a. Loosen both plunger pin bracket nuts.
b. Loosen and remove both lower roller nuts (C), chassis fastener nut (D), and base strut bolts (A,B) on
both sides. Remove the base strut.
c. Slide the inner carriage plate (F) off the fasteners, towards the center of the chair.
d. Loosen and remove both sides of the roller hardware (G).
e. Remove old top rollers (H) from the upper roller shafts ( I ) and replace with new top rollers.
f.
Reinstall the upper roller shafts ( I ) onto the inner carriage plate (F), installing roller hardware (G).
g. Reinstall carriage plate asembly onto the frame. Replace and tighten the nuts (C,D) and strut bolts (A,B).
h. Ensure that the plunger pin is centered and engaged into a rocker hole and pin bracket nuts are tight.
i.
Repeat on the other side of chair as necessary.
3. Bottom Roller Replacement
a. Loosen both plunger pin bracket nuts.
b. Loosen and remove both lower roller nuts (C), chassis fastener nut (D), and base strut bolts (A,B).
c. Slide the inner carriage plate (F) off the fasteners, towards the center of the chair.
d. Remove old bottom rollers ( J ) from the roller bushings (K) and replace with new bottom rollers.
e. Reinstall carriage plate (F) to the frame assembly. Replace and tighten the nuts (C, D) and bolts (A,B E).
f.
Ensure that the plunger pin is centered into a rocker hole and tighten plunger pin bracket nuts.
g. Repeat on the other side of chair as necessary.
NOTE– Use a torque setting of 150 in.-lbs. when tightening bottom roller hardware.
118611 Rev. C
48
49
IX. DEALER SERVICE & ADJUSTMENT
24
47
48
C
49
K