
Keystoker – Schuylkill Haven, PA 17972
Koker, Koker Lite & Econo 90 Stoker Coal Stoves
© June 2019 REV 4
- 11 -
PUSHER BAR SUBASSEMBLY: Moves in a reciprocating motion. Activated by cam on gear
motor to force coal from hopper onto grate and pushes ashes off grate into ash pan.
Length of stroke is adjustable by turning white coal feed adjustment nut. Replaceable
parts include Nylon Screws (#5 & #6) & Insulation Strip (#7). All other parts are non-
serviceable.
Item # Component
Item # Component
1
Movable Plate 2
7
Insulation Strip
2
Movable Plate 1
8
Stoker Bar
3
Screw, #10-24 x ½” Long
9
Threaded Rod, ¼”
4
Screw, #6-32 x 1.00” Long
10
Cap Nut, ¼”
5
Nylon Screw, #10-24 x ½” Long
11
WHITE Coal Feed Adjustment
6
Nylon Screw, #10-24 x ¾” Long
12
Nut, ¼”
WHITE COAL FEED ADJUSTMENT (ITEM # 11): Turn clockwise for more coal feed, turn
counterclockwise for less coal feed.
NYLON ADJUSTING SCREWS (ITEM #’s 5 &6): To eliminate metal on metal contact. There
are 8 nylon screws on the pusher bar, 4 on each side. The 4 nylon screws pictured on
diagram are used to adjust the amount of sideward movement of pusher bar. When
FIGURE 3