background image

Completely  lower  forks  to  relieve  hydraulic  pres-
sure  before  disassembling  any  part  of  the  lift
pump or disconnecting any hydraulic hoses.

The  hydraulic  oil  is  hot  at  normal  operating  tem-
peratures. Be careful when draining the oil.

Never  check  for  leaks  by  putting  hands  on  hy-
draulic  lines  or  components  under  pressure.  Hy-
draulic oil under pressure can be injected into the
skin.

  CAUTION

Protect  the  hydraulic  system  from  dirt  and  con-
taminants when servicing the hydraulic system.

Never  operate  the  pump  without  the  proper
amount of oil in the hydraulic system. The opera-
tion of the hydraulic pump with low oil levels will
damage the pump.

Inspect  all  hydraulic  hoses  and  fittings  for  leaks.
Check for broken or defective clamping devices. Re-
pair or replace any damaged components as neces-
sary.

If leaks are evident in the hydraulic system, repair
the  leaks  and  check  the  fluid  level.  Use  the  oil
specified in the Maintenance Schedule.

Oil fill level is shown on outside of translucent res-
ervoir. Check the hydraulic oil level when the oil is
at room temperature and mast is in the lowered po-
sition.  The  hydraulic  oil  level  should  be  up  to  the
FULL  mark.  Check  the  level  while  filling.  DO
NOT  OVERFILL
.  Oil  will  leak  from  the  breather
if  too  full.  After  filling,  make  sure  to  install  the
breather cap properly to prevent oil leaks.

HOW TO MAKE CHECKS WITH KEY

SWITCH ON

Check for Leaks in Lift System

  WARNING 

Make  sure  the  area  around  the  lift  truck  is  clear
before  moving  the  lift  truck  or  checking  for  cor-
rect  operation.  Be  careful  when  making  the
checks.

Never  check  for  leaks  by  putting  hands  on  hy-
draulic  lines  or  components  under  pressure.  Hy-
draulic oil under pressure can be injected into the
skin.

Never allow any part of your body under the forks.
DO  NOT  put  any  part  of  your  body  in  or  through
the  lift  mechanism.  Refer  to  Safety  Procedures
When Working Near Mast.

The capacitor in the transistor controller can hold
an electrical charge after the battery has been dis-
connected. Avoid contact with any electrical con-
nections  when  checking  for  leaks  in  the  lift  sys-
tem.

1. 

Remove the drive unit compartment covers.

2. 

Visually  check  for  leaks  in  the  lift  system.  In-
spect the condition of the hydraulic hoses, tubes
and connections for leaks, cracks, or other obvi-
ous damage.

3. 

Turn  the  key  switch  to the ON position. Raise
and  lower  the  forks  several  times  without  a
load.  All  moving  components  must  raise  and
lower  smoothly.  The  forks  must  lower  com-
pletely. Check for leaks.

4. 

Put a capacity load on the forks and raise and
lower the load several times. All moving compo-
nents must raise and lower smoothly and com-
pletely. Check for leaks.

5. 

If  leaks  are  found,  make  all  necessary  repairs,
and check again for leaks.

6. 

Install the MDU compartment cover.

Control Buttons

Check  that  the  for  the  mast  and  attachment  oper-
ate as described in the Operating Manual.

Direction/Speed Control and Switches

Check  that  the  direction/speed  controller  and  the
switches for traction reverse and lift/lower operate
as  described  in  the  Operating  Manual.  The  key
switch  must  be  in  the  ON  position  to  check  the
switches  for  proper  operation.  Check  the  condition
of the directional/speed control (Butterfly Knobs) by
turning each knob through its full range of motion.

8000 SRM 1379

Maintenance Procedures Every 8 Hours or Daily

17

Summary of Contents for B495

Page 1: ...Hyster B495 W25ZA2 W30ZA2 Forklift Service Repair Manual...

Page 2: ...PERIODIC MAINTENANCE W25 30ZA2 B495 PART NO 1692609 8000 SRM 1379...

Page 3: ...dic Maintenance section Keep the unit clean and the working area clean and orderly Use the correct tools for the job Keep the tools clean and in good condition Always use HYSTER APPROVED parts when ma...

Page 4: ...System 16 How to Make Checks With Key Switch ON 17 Check for Leaks in Lift System 17 Control Buttons 17 Direction Speed Control and Switches 17 Gauges Horn Fuses 18 Maintenance Procedures Every 350 Ho...

Page 5: ...l Battery Charging 30 Battery Pack Charging 31 How to Change the Battery 31 Standard Battery Spacer Adjustment 31 Changing the Battery With an Overhead Crane 32 Remove 32 Install 33 This section is fo...

Page 6: ...ore information Please click here Then get the complete manual NOTE If there is no response to click on the link above please download the PDF document first and then click on it Have any questions pl...

Page 7: ...repairs Your Hyster lift truck dealer has the trained personnel and equipment to do a complete program of inspection lubrication and maintenance This complete program will help your lift truck operat...

Page 8: ...Until repairs are complete keep a tag on the control handle stating DO NOT OPERATE Remove the key In order to move a disabled lift truck the electric brake must be released A jumper is provided in the...

Page 9: ...otal weight equal to or greater than the weight of the disabled lift truck 13 Make sure the Brake Override Circuit is disconnected from the Brake Harness prior to operating the lift truck HOW TO PUT T...

Page 10: ...umper on both sides or hook lift strap under drive frame cowl See Figure 2 3 Install additional blocks under the frame near the drive tire See Figure 3 A TOP VIEW B LEFT VIEW 1 DRIVE END 2 FORK END 3...

Page 11: ...ocks must prevent the lift truck from falling and causing personal injury or prop erty damage The capacitor in the transistor controller can hold an electrical charge after the battery is disconnec te...

Page 12: ...Figure 4 Discharging the Capacitor Legend for Figure 4 1 NEGATIVE CONNECTION 2 POSITIVE CONNECTION 3 200 OHM 2 WATT RESISTOR 4 INSULATED JUMPER WIRES Special Precautions 8000 SRM 1379 6...

Page 13: ...onnector Be careful of the forks When the mast is raised the forks can be at a height to cause an injury DO NOT climb on the mast or lift truck at any time Use a ladder or personnel lift to work on th...

Page 14: ...Operator Guard Not Shown Maintenance Schedule The Maintenance Schedule has time intervals for inspection lubrication and maintenance for your lift truck The service intervals are given in both operat...

Page 15: ...Figure 6 Maintenance Points 8000 SRM 1379 Maintenance Schedule 9...

Page 16: ...xamine for Rust Damage or Corrosion Check Torque Tighten if Required 115 N m 85 lbf ft 5 Load Wheels X Check Condition Load Wheels must roll smoothly and not be excessively loose L 1 Fitting Each Mult...

Page 17: ...n Minimum Springs X Check for Heat Damage Discoloration Replace as Required Commutator X Clean Vacuum or Low Pressure Air Gauges Horn and Fuses X Check Condition Replace as Required 11 Control Handle...

Page 18: ...s area Remove the key from the key switch Disconnect the battery connector before remov ing the MDU cover Personal injury or equipment and tool damage can occur if the battery is not disconnected The...

Page 19: ...sodium bicarbonate baking soda Acid in the eyes must be immediately flushed with water continuously for fifteen minutes then seek medical attention Batteries generate explosive fumes Keep the vents in...

Page 20: ...as shown in Figure 13 Tighten the bolts to the value shown in the When the bolts stay tight after 8 hours the interval for checking the torque can be extended to 350 hours Inspect the drive tire and...

Page 21: ...er hoses and fittings for hydraulic leaks Check the hose cover for cracks or exposed reinforcement Check for broken or defective clamping devices Repair or replace any damaged components as necessary...

Page 22: ...t the lift chains for cracks or broken links and pins 9 Inspect the chain anchors and pins for cracks and damage 10 Make sure the lift chains are adjusted so they have equal tension If the chains need...

Page 23: ...s Never check for leaks by putting hands on hy draulic lines or components under pressure Hy draulic oil under pressure can be injected into the skin Never allow any part of your body under the forks...

Page 24: ...nual The Operating Manual is located in the container on the MDU cover This is a permanent reference and must be available for use at all times Check the operation of the gauges and horn If the truck...

Page 25: ...maintenance The battery must fit the battery compartment so the battery restraint panels will operate correctly Use spacers to prevent the battery from moving more that 13 0 mm 0 5 in in any directio...

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