LANDING
RETRACT
TRAILER
COUNTER CLOCKWISE
H
IGH
C
LOCKWISE
EXTEND
LOW
TRAILER
COUNTER CLOCKWISE
LOW
CLOCKWISE
HIGH
RETRACT
EXTEND
OPERATING, MAINTENANCE,
AND REPAIR PROCEDURES
GEAR
Formula 150 Landing Gear
(Manufactured after March 1, 2000)
Do not deviate from these instructions. Any changes or
deviations will void all warranties, expressed or implied,
unless written consent is first obtained from the factory.
OPERATION OF HOLLAND
FORMULA 150 LANDING GEAR:
NOTE: Holland Formula 150 2-speed gearbox has high
and low range gears. High range gear is to be used only
for rapid traverse up from and down to the ground and is
not intended to lift or lower any load. For additional information, see Holland publication XL-FW302-XX, entitled
"Fifth Wheel Operating Instructions."
• Always grip crank handle securely.
• Always grip crank handle securely
with both hands before shifting.
CAUTION
• Never shift landing gear
under load.
• Never leave the crank unsecured.
• Never raise or lower a loaded
trailer in high gear.
TO EXTEND:
On outside mounted landing gear, engage the crank with
the crankshaft and turn the crank clockwise. Inside mounted
landing gear are extended by turning the crank counterclockwise. Using high gear, lower the landing gear until the
pads make contact with the gr
the fifth wheel, shift to low gear and crank an additional
four to eight turns. Leave the landing gear in low gear and
store the crank handle in the holder provided.
ound. To reduce the load on
Before operating, identify the mounting style of your landing gear — inside or outside mount (
see figures below).
OUTSIDE MOUNT
• Push crank handle in for
• Pull crank handle out for
• Turn crank:
Counterclockwise = extend
Clockwise = retract
low speed.
high speed.
INSIDE MOUNT
TO RETRACT:
On outside mounted landing gear
crankshaft and turn the crank counterclockwise. Inside
mounted landing gear are retracted by turning the crank
clockwise. Retract the landing gear using low gear until
unloaded. Then shift to high gear and continue cranking
until fully retracted. Leave the crankshaft engaged to
prevent road vibration wind-down. Store the crank in the
holder provided.
XL-LG315-01 1
, engage crank with
• Push crank handle in for high speed.
• Pull crank handle out for
n crank:
ur
T
•
Counterclockwise = retract
Clockwise = extend
low speed.
MAINTENANCE:
LUBRICATION:
Although Formula 150 landing gear are adequately
greased and packed with high quality lubricants when
manufactured, it may be necessary to periodically
supplement this lubrication to maintain satisfactory
performance for your particular application.
1. Lube both legs with a molybdenum-type grease through
the grease fittings and access holes provided in the legs
two times a year or as required. Add one quarter pound
grease at each grease fitting.
. Lube 2-speed gears through the grease fitting in the
2
gearbox two times a year or as required. Add one
quarter pound grease at each grease fitting.
S
INGLE SPEED LEG DISMANTLING PROCEDURE:
. Remove landing gear from trailer.
1
2. Remove rust from projecting end(s) of shaft (11), and
lubricate for easy removal.
3. Remove screws (5), cover (6), and gasket (7).
4. Tap out pins (8) from shaft (11). Remove shaft (11),
inion gear (10) and key (9).
p
5. Tap out pin (14) from top of screw.
. Remove washer (15).
6
7. Slip pin (14) out of elevating screw and remove.
Remove washer (15).
8. Upper leg (2) and lower leg (1) can now be separated.
9. Remove bushing (16).
10. Remove bearing (17) and collar (18) from lower leg (1).
DO NOT use lubricants
containing teflon.
WARNING
TROUBLE SHOOTING — HARD TURNING
LANDING GEAR — CHECK THE FOLLOWING:
1. Binding cross shaft. Bolts in the cross shaft must not be
overtightened to prevent lateral movement of the cross
shaft.
2. To determine which leg turns hard, remove the cross
shaft and operate each leg individually.
3. Landing gear may be bent or damaged.
4. Alignment–legs must be parallel and extend and
retract evenly.
5. Legs and gearbox may need additional lubrication.
6. If crankshaft holder or extension are used, check
for alignment with crankshaft.
7. If a through-axle is used, check for binding where
the axle goes through the legs.
8. Binding shaft bushings–bushings must have
adequate clearance for operation. Check mounting
for proper clearance.
9. Examine nut and screw assembly for damage caused
by dropping of the trailer.
TROUBLE SHOOTING—GENERAL:
Follow the dismantling and assembly instructions in
this manual.
If crankshaft jams or skips while tur
(10 & 13) and all gearbox gears for wor
missing teeth.
If the landing gear will not stay in gear while
cranking–check the condition of shifter spring (29),
shifter gr
Replace as required.
2
ooves in crankshaft (27) and cluster gear (28).
ning–examine parts
n, broken, or
2-SPEED GEARBOX LEG DISMANTLING
PROCEDURE:
1. Remove landing gear from trailer.
2. Remove nut (19), bolt (20), washers (21), and crank
handle (22).
3. Remove rust from shafts (27) and (32), and lubricate
to ease removal.
4. Remove nuts (23) and bolts (24) from gearbox.
5. Remove gearbox cover (25) and gasket (26).
6. Remove shaft (27) with gear (28) assembled.
To remove gear from shaft, remove roll pin (30),
and slide gear from shaft (27). Remove pin (31)
from shaft (27).
7. Remove screw (5) and shifter spring (29).
8. Remove screws (5), cover (6), and gasket (7).
9. Drive pins (8) from shaft (32).
10. Remove gear (10) and washer (12). Remove spacer
(37), gear (33), key (9), and spacer (16).
11. Follow procedures outlined in steps 6 through 10 in
"Single Speed Leg Dismantling Procedure," to finish
leg dismantling.
12. Remove bushings (34) or (35) if required.
SINGLE SPEED LEG ASSEMBLY PROCEDURE:
1. Replace all worn or broken parts.
, followed by
2. Place collar (18) on elevating scr
3. Place upper leg (2) over lower leg (1). Press down until
4. Install washer (15) and slip pin (14) in hole in the
5. Place the shims (12) and pinion gear (10) on top of the
5.
ust bearing (17). Note: Contoured side of collar
thr
must face down.
hole in the elevating screw is clearly visible through
the hole in the bearing block in the upper leg (2).
elevating scr
it so that the slot on the bottom of the gear captures
pin (14).
bevel gear with the roll pin hole in the pinion
gear facing up.
Install shaft (11) in outer leg (2) through shims (12)
and gear (10), making certain gear is oriented as
shown in the exploded view. Initially start with
two shims.
ew. Install bevel gear (13) and position
ew
continued
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