Connerton Model A-4F - Manual (Page 6)

Monthly Preventative Maintenance:
Checking Leveling Rods:
There are two leveling rods that adjust each lower griddle plate. Each rod has two adjusting nuts at the
top end, just behind the face plate of the bottom grill.
The lower nut adjusts the pitch of the back of the grill, and the upper nut tightens to secure the firm
tension of the leveling rod. The rods must
be lose.
Checking the lower grill plates:
To check the lower grill plates, use the following steps:
1. Put the bottom grill in the up-and-in position.
2. Mark the level of the bottom grill at the front.
3. Pull the bottom grill out and mark the level of the grill at the back.
The difference between the two marks should not exceed 1/8”. If the difference is not within this range,
adjust the leveling rods as described above.
Checking the Spring Tension of the Bottom Grills:
The spring tension regulates the ability of the drawer mechanism to lift the weight of the bottom griddle
plate. Difficulty of upwards movement indicates that spring tension must be increased. Difficulty of
downward movement indicates spring tension must be reduced.
To increase spring tension, tighten the nuts at the end of the threaded ‘J’ hook at the end of the spring,
thus extending the spring and increasing spring tension. To decrease spring tension, loosen the nuts.
NOTE: Make equal adjustments to BOTH springs to prevent unbalanced tension.
Checking the Detent Assembly:
The detent assembly regulates the full down and in-between settings before full up position is reached.
There is one detent assembly on each side of the mechanism support arms. Each assembly consists of
a steel ball bearing, spring, retaining bolt and lockdown nut. Check to insure that the depressions in the
detent plate are clean and free of deposits so that the ball bearing can roll in and out.
Screwing in the bolt increases compression on the spring which in turn increases pressure on the ball
bearing. Adjust spring compression by loosening lockdown nut and tightening the retaining bolt until a
forceful ‘clicking’ is heard as the ball bearing rides in and out of the detent plate depressions. Tighten
lockdown nut when satisfactory pressure is achieved. Adjust both detent assemblies to equal
compression for best operation.
NOT
Periodic Maintenance:
Radiants:
Verify that the radiants are glowing red. If not, the grill is not being used efficiently. Check flame color
and length. Flame tips should reach the end of the edge of the radiant fingers. Replace any broken
radiant when 2 or more fingers in a row are broken or missing. NOTE: Broken fingers will lead to
plugged burner ports.
Orifices:
2 orifice caps are used for the top burner assembly, 10 orifice caps are used for the bottom burner
assembly.