POWER TRAIN 2250 SERVICE/MAINTENANCE MANUAL
7-26
Published 11-06-15, Control # 040-13
PUMP DRIVE DISCONNECT
General
A gear-type manually operated disconnect is mounted inside
the pump drive. The disconnect allows the pump drive to be
disconnected from the engine, thereby reducing engine load
and making start-up easier in cold weather. The disconnect
can be engaged or disengaged only while the engine is off.
Adjustment
See Figure 7-29 for the following procedure.
Disconnect the pump drive for the following reasons:
• To make engine starting easier during cold weather
• When hydraulic pumps are being serviced
To adjust the pump drive disconnect:
1. Set length of shift rod to 27-1/2 in (699 mm), lock in
place with hex nut, and install.
2. Set length of pull rod to 12-7/8 in (327 mm), lock in place
with elastic stop nuts, and install.
3. Position rocker arm:
a. Adjust set screws against base plate until hook can
fully engage latch assembly without interference
(View A).
b. Lock set screws in place with hex nuts.
4. Install springs so hook is held in fully engaged position.
5. Install control rod:
a. Approximate assembly length from centerline to
centerline of ball joints is 24-9/16 in (624 mm).
b. Adjust length to retain a minimum of 1/8 in (3 mm)
clearance (View B) between hook and latch
assembly when trigger is compressed against
handle and shaft is shifted through engaged and
disengaged positions.
CAUTION!
Parts Damage!
Do not run engine longer than 2 minutes with pump drive
disengaged. Pump drive bearings can be damaged.
Do not engage or disengage pump drive with engine
running. Gear damage could result.
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